AU2010228995A1

AU2010228995A1 - Booster water pump system

Info

Publication number: AU2010228995A1
Application number: AU2010228995A
Authority: AU
Inventors: Richard J. Gilpatrick
Original assignee: Briggs and Stratton Corp
Current assignee: Briggs and Stratton Corp
Priority date: 2009-03-25
Filing date: 2010-03-22
Publication date: 2011-10-27
Also published as: CN102361699A; WO2010111185A2; EP2411157A2; WO2010111185A3

Abstract

A booster system for use with a garden hose includes a water pump, a garden hose, and a hose structure. The water pump has a motor and is designed to produce a maximum water pressure of less than 1000 psi. The garden hose connector is connected to the pump. The hose storage structure for holding a garden hose is proximate to the pump. The booster system also includes a switch for engaging and disengaging the pump.

Description

WO 2010/111185 PCT/US2010/028157 BOOSTER WATER PUMP SYSTEM CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application claims the benefit of and priority to U.S. Application No. 12/411,139, filed March 25, 2009, and U.S. Application No. 12/502,798, filed July 14, 2009, both of which are incorporated herein by reference in their entireties. BACKGROUND [0002] The present invention relates generally to the field of garden hoses and sprayers. More specifically, the invention relates to a booster water pump system for a garden hose. [0003] In some embodiments, the invention more specifically relates a pump and control mechanism for boosting the flow rate, pressure, momentum, and/or exit velocity of a water flow (or water stream) through the system. In other embodiments, the present invention more specifically relates to booster water pump systems having housings that support hose reels. [0004] Household garden hoses may be used for a wide variety of tasks around a home. However, at pressures supplied by household plumbing systems, the pressure of out-going streams may be fairly low, for example approximately 0.4 megapascals (MPa), or approximately 60 pounds per square inch (psi). For example, typically homes using municipal or well water are limited to water from a faucet or bibcock at a pressure of about 40-60 pounds per square inch (psi), flowing at a rate of about 3-5 gallons per minute (gpm). As such, unassisted municipal or well water pressure and flow rate may be insufficient to effectively scrub surfaces, quickly water plants, or controllably spray distant cleaning targets. To compensate, household garden hoses may be fitted with a wide variety of fittings and/or nozzles to increase the water pressure in the system and provide a stream of water with an increased exit velocity. However to increase the out-going velocity of the water stream, such nozzles may greatly reduce the out-going flow rate, which is the product of average velocity and flow cross-section-for example from approximately 315 to 630 cubic centimeters per second (cm 3 /s), or approximately 5 to 10 gallons per minute (gpm), down to less than 190 cm 3 /s (3 gpm). -1- WO 2010/111185 PCT/US2010/028157 [0005] Devices other than garden hose boosting pumps, such as powered pressure washers for example, are known to be used to clean dirt, paint, or mold from pavement, brick face, cement, or other surfaces. To achieve such results, these devices may generally provide an energized water stream but with a greatly increased pressure (e.g., approximately 9.6 MPa (1400 psi)) and a greatly reduced flow rate (e.g., approximately 80 to 90 cm 3 /s (1.3-1.4 gpm)). Heavy duty pressure washers may provide streams with even higher pressures (e.g., 20 to 35 MPa (3000-5000 psi)) and possibly greater flow rates (e.g., approximately 225 cm 3 /s (3.5 gpm)). The high pressure streams of heavy duty pressure washers may facilitate more demanding tasks, such as resurfacing or cutting of materials, which may require extremely powerful flows. High-pressure hose lines and spray guns are used with heavy duty pressure washers. SUMMARY [0006] One embodiment of the invention relates to a garden hose spray system including a pump for boosting a water flow through the system, a garden hose connector coupled to the pump, and a controller. The controller is in communication with the pump, such that the controller engages the pump when the water flow exceeds a predetermined, non-zero threshold flow rate. The garden hose spray system further includes a variable outlet operable at a first flow setting for a flow rate greater than the threshold and a second flow setting for a non-zero flow rate less than the threshold. [0007] Another embodiment of the invention relates to a garden hose assist system including a water pump having a motor, an inlet, and an outlet. A garden hose connector is coupled to the pump. The hose assist system also has a flow sensor coupled to the pump, and the sensor has a status that is based upon measuring water flowing through the system relative to a non-zero, flow rate threshold. Also, the hose assist system includes a control circuit that engages the pump in response to the status of the flow sensor. [0008] Still another embodiment relates to a booster system for use with a garden hose. The booster system includes a water pump having a motor. The pump is designed to produce a maximum water pressure of less than 1000 psi. A garden hose connector is coupled to the pump. The booster system also includes a switch for engaging and -2- WO 2010/111185 PCT/US2010/028157 disengaging the pump. A hose storage structure for holding a garden hose close to the pump is also included in the system. [0009] Another embodiment relates to a garden hose storage and booster system. The booster system includes a water pump and a garden hose connector coupled to the pump. A switch is included for engaging and disengaging the pump. A hose storage structure for holding a garden hose close to the pump is also included in the system. Additionally, a storage housing substantially encloses the pump and the hose storage structure. [0010] Yet another embodiment relates to a garden hose booster control system. The system includes a water pump with a motor, a radio frequency receiver, and a switch for engaging and disengaging the motor. The system also includes a variable outlet having a first flow rate setting, a second flow rate setting, a radio frequency transmitter. The transmitter is designed to transmit a radio frequency signal to the receiver to indicate which setting the variable outlet is using. Additionally, the system includes a controller designed to adjust the switch based upon the signal. [0011] Another embodiment of the invention relates to a booster pump system, for boosting a flow of water from a water source. The booster pump system includes a housing having a retractable handle. The booster pump system also includes a water pump positioned within the housing. The pump has an inlet and an outlet, and is designed to raise the pressure of the flow of water by an amount in a range of 20-200 pounds per square inch. The pump is also designed to raise the flow rate of the flow of water by an amount in a range of 0.5-5 gallons per minute. The booster pump system further includes a hose reel positioned within the housing, where the hose reel supports a garden hose attached to the outlet of the pump. [0012] Still another embodiment of the invention relates to a booster pump system for boosting a flow of water from a bibcock or faucet coupled to a water source. The booster pump system includes a housing having a cover and a storage area for storing accessories. The booster pump system also include a garden hose fitting attached to the housing. Further, the booster pump system includes a water pump positioned within the housing. The pump has an inlet attached to the fitting, and an outlet, and the pump is designed to raise the pressure of the flow of water by an amount in a range of 20-200 pounds per square inch. The pump is also designed to raise the flow rate of the flow of water by an amount in -3- WO 2010/111185 PCT/US2010/028157 a range of 0.5-5 gallons per minute. The booster pump system additionally includes a hose reel positioned within the housing. The hose reel supports a hose attached to the outlet of the pump. Also, the hose reel is designed to support the hose when the hose is pressurized with the boosted flow of water flowing through the hose. [0013] Another embodiment of the invention relates to a powered garden hose reel and booster pump system. The system includes a housing and a pump having an inlet and an outlet. The pump is powered by a first electric motor, and the pump is positioned within the housing. The system also includes a hose reel positioned above the pump within the housing. The hose reel supports a hose attached to the outlet of the pump. Also, the system includes a second electric motor for winding the hose onto the reel. The system further includes a moving guide to direct the winding of the hose onto the reel. [0014] Alternative exemplary embodiments relate to other features and combinations of features as may be generally recited in the claims. BRIEF DESCRIPTION OF THE FIGURES [0015] The invention will become more fully understood from the following detailed description, taken in conjunction with the accompanying figures, wherein like reference numerals refer to like elements, in which: [0016] FIG. 1 is a perspective view of a garden hose storage and booster system according to an exemplary embodiment of the invention. [0017] FIG. 2 is a perspective view of a portable garden hose spray system according to an exemplary embodiment of the invention. [0018] FIG. 3 is a perspective view of a booster pump system according to an exemplary embodiment of the invention. [0019] FIG. 4 is a front view of a power cord rack according to an exemplary embodiment of the invention. [0020] FIG. 5 is a perspective view of a booster pump system according to another exemplary embodiment of the invention. -4- WO 2010/111185 PCT/US2010/028157 [0021] FIG. 6 is a sectional view of a booster pump system according to an exemplary embodiment of the invention. [0022] FIG. 7 is a sectional view of a booster pump system according to another exemplary embodiment of the invention. [0023] FIG. 8 is a perspective view of an interior of a housing for a booster pump system according to an exemplary embodiment of the invention. [0024] FIG. 9 is a side view of a scrubbing brush for a garden hose spray system according to an exemplary embodiment of the invention. [0025] FIG. 10 is a bottom view of a scrubbing brush head for the brush of FIG. 9. [0026] FIG. 11 is a side view of a broom for a garden hose spray system according to an exemplary embodiment of the invention. [0027] FIG. 12 is a bottom view of a broom head for the broom of FIG. 11. [0028] FIG. 13 is a bottom view of another broom head for the broom of FIG. 11. [0029] FIG. 14 is a bottom view of yet another broom head for the broom of FIG. 11. [0030] FIG. 15 is a side view of a garden hose spray system according to an exemplary embodiment of the invention. [0031] FIG. 16 is an end view of a spray head for the garden hose spray system of FIG. 15. [0032] FIG. 17 is an end view of another spray head for the garden hose spray system of FIG. 15. [0033] FIG. 18 is a block diagram of a garden hose spray system according to an exemplary embodiment of the invention. [0034] FIG. 19 is a block diagram of a garden hose spray system according to another exemplary embodiment of the invention. [0035] FIG. 20 is a diagram of a control matrix for a spray system according to an exemplary embodiment of the invention. -5- WO 2010/111185 PCT/US2010/028157 [0036] FIG. 21 is a block diagram of a garden hose spray system according to yet another exemplary embodiment of the invention. [0037] FIG. 22 is a schematic view of a booster pump system according to an exemplary embodiment of the invention. DETAILED DESCRIPTION [0038] Before turning to the figures, which illustrate the exemplary embodiments in detail, it should be understood that the present invention is not limited to the details or methodology set forth in the description or illustrated in the figures. It should also be understood that the terminology is for the purpose of description only and should not be regarded as limiting. [0039] Garden hoses and sprayers can be used for a broad range of applications, including for example cleaning cars, watering plants, washing home windows and siding, rinsing out a warehouse floor or garage, and the like. However, garden hoses alone may produce water streams that are too weak to wash off certain materials, such as tree sap or bird residue. As such, booster systems for garden hoses may be very useful. Booster pumps provide extra water pressure and flow for indoor or outdoor applications, such as gardening, cleaning, or other applications. Water pressure levels produced by booster pumps are low enough that conventional garden hoses may be used, but high enough to meet the requirements of various tasks. As such, the added boost may produce water streams powerful enough to handle everyday household cleaning tasks that are outside of the capabilities of garden hoses alone. [0040] Some embodiments described herein relate to a booster pump system for a garden hose, as opposed to a pressure washer system. In certain scenarios a user may desire an increased flow rate and pressure beyond the capabilities of an unassisted garden hose, but not with the reduced flow rate and much higher pressures of a pressure washer. Such scenarios may include, for example, removing stuck-on plant debris from a vehicle, removing dried-on bird waste from a window, or removing spider webs from an eve of a high roof line, out of reach of a garden hose having unassisted pressure and flow. A booster pump system powers a water stream from a household water system with an increased flow rate and pressure suitable for everyday-type cleaning and gardening applications. -6- WO 2010/111185 PCT/US2010/028157 [0041] Referring to FIG. 1, according to an exemplary embodiment, a booster water spraying system is in the form of storage system 110 that includes a pump 130 and a motor 132, both stored on or in a housing 176, a windable hose reel 116, a crank handle 178, and a hose with a spray gun 140. In some embodiments the motor 132 is a combustion engine; and in other embodiments, the motor is an electric motor. In certain embodiments, the system 110 includes a controller for controlling the pump, as to be discussed in regard to the embodiments shown in FIGS. 18-21. Some embodiments include a pivotable cover that opens and locks closed (e.g., with a latch), and storage compartments for storing hose components (e.g., a sprinkler, additional sprayers, etc.). The housing 176 may include drawers, hooks, clips, and other structure for storing a variable outlet. The housing may be designed to be placed in a yard, remain stationary, and endure the elements. According to some exemplary embodiments, the weight of the pump 130 and motor 132, arranged proximate to the support base of the system 110, function to hold the storage system 110 in place and help to prevent tipping of the system 110 in high winds, for example. [0042] Still referring to FIG. 1, the handle 178 can be used to crank the reel 116, to wrap the hose. Other embodiments do not include a handle 178, and instead use a powered motor to rewind the reel 116. The reel 116 may be in a location proximate to the pump 130, such that a user may be able to reach to the reel 116 to grasp a garden hose on the reel 116 while handling the pump 130. In some embodiments, a biasing member, such as a torsion spring or reel motor, is coupled the hose reel 116. After use the hose is retracted (i.e., wound back onto the reel) as the biasing member winds the reel. In some embodiments, the torsion spring may also be coupled to a releaseable ratchet member, such that the hose will only rewind when a user releases the ratchet, in a manner similar to a typical self-retracting tape measure. Other exemplary embodiments include hose storage structures, such as the hose reel 116, hose racks and frames that are not rotatable like the reel 116. Still other embodiments include hose storage structures in the form of a storage compartment, such as drawers and cabinets, where a user simply places the hose (e.g., in a coiled stack) in the compartment. [0043] Referring to FIG. 2, according to an exemplary embodiment, a booster water spraying system is in the form of a portable wheeled-cart 210 that includes a pump 230 stored on or in the cart 210, a windable garden hose reel 276, a handle 278, a hose 216, and wheels 279. Other embodiments include a cart with a roll-bar frame to protect the pump -7- WO 2010/111185 PCT/US2010/028157 230 and other components from damage if the cart is overturned. When the hose 216 couples the pump to a water source, the pump 230 may energize the water flow. Other exemplary embodiments include hose storage structures other than the hose reel 276, such as hose racks that are not windable, but instead require a user to wrap the hose around a frame. Still other exemplary embodiments include a pump with a hose rack that may be mounted to the side of a house or building. Such embodiments may form booster water spraying system kits. [0044] Referring to FIG. 3, a booster pump system 310 is shown, according to an exemplary embodiment, to include a housing 312 having a cover 314, a handle 316, and wheels 322. A user may tilt the system 310 over the wheels 322 with the handle 316, and then roll the system 310 to a desired place of use. Within the housing 312, the system 310 includes a hose reel 330 that is designed to support a garden hose 326 wound on the reel 330, while the hose 326 is pressurized due to water flowing through the hose 326. One end of the hose 326 is coupled to an outlet of a motorized water pump (see, e.g. pump 1512 shown in FIG. 22, having an inlet 1544 and an outlet 1546). An inlet of the pump is designed to be coupled to water source, such as an outdoor bibcock or an indoor faucet. An on/off switch 360 permits or denies electricity to power the pump. In other embodiments, the on/off switch 360 activates an automatic starter of a small combustion engine powering the pump. [0045] Still referring to FIG. 3, the garden hose 326 may be wound with a manual rewind 318 that includes a handle 320. A user rotates the handle 320, which winds the garden hose 326 onto the reel 330 (see also FIG. 5) within the housing 312. A guide 342 positions the hose 326 along the reel in an orderly wind. Rotation of the handle 320 of the manual rewind 318 may directly or indirectly control the movement of the guide 342. In other embodiments, the reel may move back and forth, while the guide remains fixed. [0046] In an exemplary embodiment, the system 310 also includes an automated rewind system (see, e.g., power rewind system 1540 shown in FIG. 22). An on/off switch 334 for the automated rewind system is shown to extend from an exterior surface of the housing 312. In other embodiments, a garden hose reel and booster pump system includes an automated rewind system without an additional manual rewind. In some embodiments, the power rewind system 1540 may be activated by a user pressing a foot pedal on an exterior of the housing 312, positioned near the base of the housing. In some embodiments, the -8- WO 2010/111185 PCT/US2010/028157 automated rewind system is powered by a torsion spring that is loaded when a user pulls out the hose 326. In still other embodiments, water pressure is used to rotate the reel. [0047] As shown in FIG. 3, the housing 312 also includes an aperture 324 through which the garden hose 326 may be extracted. In some embodiments, a sliding cover seals the aperture 324, shielding components within the housing 312 from the outside environment. The sliding cover slides back and forth with the movement of the hose guide 342. Additionally, the housing 312 further includes access to a pump inlet fitting 344, such as a quick connect fitting or a threaded male or female hose fitting. A garden hose (not shown) may be used to link a household water source to the system 310 by coupling to the fitting 344. [0048] Still referring to FIG. 3, the garden hose 326 is fitted with a nozzle 328, spray gun, sprinkler, etc., which may be stored in a cavity 346 on an exterior surface of the housing 312. In some embodiments, the cavity 346 includes hooks, clips, or other fasteners with which the nozzle 328 may be held. In addition to the cavity 346 for the nozzle 328, the handle 316 and the manual rewind handle 320 may be stored in the housing 312. Storage of exterior components of the system 310 within the housing 312, such as the nozzle 328 and the handles 316, 320, reduces the drag profile of the system 310, which may help prevent tipping of the system 310 during periods of high winds. FIG. 4 shows a power cord 370 and a rack 372 for storing the power cord 370. In some embodiments, the rack 372 is located on an exterior side of the system 310, below the handle 316. In other embodiments, the rack 372 is positioned under a hood or cover that is fastened to an exterior side of the system 310. [0049] Booster pump systems may be better suited to operate with typical garden hoses than pressure washers due to characteristics of the garden hoses, such as their burst ratings. The garden hose 326 may be made from a wide variety of commonly known materials such as vinyl, rubber, composite, and the like. For example, typical garden hose characteristics may vary depending design choice, such as hose dimensions, gauge, material, reinforcement, and the like. Some garden hoses are constructed of a synthetic rubber or soft plastic. These hoses are reinforced with internal or external fiber webbings, such as nylon or polyester tire-cords. Certain hoses are "reinforced vinyl" garden hoses. Due the variety of design choices and available materials, different commercial garden hoses have a broad range of "burst strengths" or "burst ratings," the maximum allowable internal pressures that -9- WO 2010/111185 PCT/US2010/028157 a hose can withstand before rupture. Some lower-quality hoses, for use with embodiments disclosed herein, have a burst rating of about 200 psi. Other medium-quality hoses have burst ratings ranging from about 275 to 350 psi. Still other higher-quality garden hoses have burst ratings from about 350 to 500 psi or higher. [0050] Referring to FIG. 5, a garden hose reel and booster pump system 410 is shown having a housing 412 with a cover 414 in an opened position. A support 416 or brace is used to hold the cover 414 in the opened position, and may also include a shock absorber (i.e., damper) to prevent slamming of the cover 414. The housing 412 holds a hose 426 wrapped around a hose reel 430, with an end of the hose 426 extending through an aperture 424. A spray gun 428 is attached to the end of the hose 426. The spray gun 428 fits within a cavity 418 for storage on an exterior surface of the housing 412. FIG. 5 also shows a sliding reel guide 470 adjacent to the aperture. A female quick-connect garden hose coupler 472 on the outside surface of the housing 412 directs water to the pump inlet. [0051] In addition to the cavity 418, storage areas 440, 442 are shown within the housing 412 and cover 414, respectively. The storage area 440 includes a removable tray 444. The tray 444 has hooks 446 that catch a top edge of the housing 412. The cover 414 closes over the hooks 446. Various items, including garden hose accessories, such as car wax, a scrub brush, an additional length of hose, and other items may be stored in the tray 444. The tray 444 may be lifted out of the housing 412 to access components below the tray 444. In other embodiments, a shelf may be fixed to the housing with glues, hinges, welds, threaded fasteners, or other fasteners. In still other embodiments, a sliding drawer slides into and out of the housing 412, and is accessible from an exterior surface of the housing 412. The storage area 442 includes clips attached to an underside surface of the cover 414. The clips are designed to hold garden hose accessories, such as spray guns, nozzles, and other items. [0052] Still referring to FIG. 5, the system 410 includes back wheels 420 and retractable front wheels, in the form of casters 450 coupled to a foot pedal 452. A user may push the pedal 452 to engage the casters 450. For example, pushing down the foot pedal 452 lowers a lever arm 454, which rotates gearing 456 that engages teeth arranged vertically along a shaft 458 with one of the casters 450 on an end of the shaft 458. The foot pedal 452 can be locked into and released from the down position. When the casters 450 are down, the casters 450 and the wheels 420 support the housing such that the housing may be rolled to a desired location. In some embodiments, the casters 450 have treads designed to roll over -10- WO 2010/111185 PCT/US2010/028157 grass or other terrain. In other embodiments, both front and back wheels are retractable. In still other embodiments, the wheels are always engaged (i.e., not retracted), and the wheels may be locked and unlocked to mobilize and immobilize the system 410. Other embodiments may use various commercially available systems for mobilizing and immobilizing wheels. [0053] As shown in FIG. 5, the housing 412 further includes a lock 432. The lock 432 includes a latch that engages a loop 434 on the cover 414, where the lock 432 allows a user to limit access to the interior of the housing 412 by locking the cover 414. In some embodiments, a main power switch (e.g., switch 1528 shown in FIG. 22) is positioned within the interior of the housing 412 so that an unauthorized user may be prevented from activating the main power switch if the cover 414 is locked. The lock 432 also helps to secure accessories stored within the housing 412. In other embodiments, other commercially available locking systems are used, such as padlocks, cylinder locks, locking latches, and other locking systems. [0054] FIG. 6 shows a top-down sectional view of a booster pump system 510 which includes a housing 512, a hose reel 514, and a hose 516 wrapped around the reel 514. Additionally, the system 510 includes a retractable handle 524 with telescoping extensions 518. A user may press a button 520 to release a catch so that the telescoping extensions 518 may slide relative to the housing 512. For example, to extend the handle 524 the user may press the button 520 and pull a cross bar 522 of the handle 524 away from the housing 512. When the handle 524 has extended from the housing 512 by a desired length, the user may then release the button 520 to re-engage the catch, locking the handle 524 in the extended position. The handle 524 may then, for example, provide leverage to tilt the system 510 or to roll the system 510 to a desired location. Following use of the handle 524, the user may then press the button 520 to release the catch, and slide the handle 524 back into the housing 512. In some embodiments, the angle from which the handle 524 is positioned relative to the housing 512 may be adjusted. In other embodiments, the handle includes only a single telescoping arm positioned near the center of the housing. [0055] FIG. 7 shows a top-down sectional view of a booster pump system 650, which includes a housing 652, a hose reel 654, and a garden hose 656 wrapped around the hose reel 654. Additionally, the system 650 includes a retractable handle 658 having arms 660 and a cross member 662. The arms 660 slide through guiding brackets 664 or sleeves. In -11- WO 2010/111185 PCT/US2010/028157 some embodiments, the arms 660 ratchet and lock into an extended position. A user may then release a pawl 666 to slide the arms 660 back into the housing 652. Other embodiments use various commercially-available retractable handles. [0056] Referring to FIG. 8, components of a booster pump system 710 are shown within a housing 712 in FIG. 8. The components include a water pump 714 with a motor 728, a hose reel 716, and a hose reel guide 720. The hose reel 716 is positioned above the pump 714 and motor 728. The weight of the pump 714 and motor 728, arranged proximate to the support base of the housing 712, help to prevent tipping of the system 710, such as in high winds, or when the hose reel 716 is winding the hose. Also shown in FIG. 8 are an inlet fitting 750 proximate to a flow switch 752 that is positioned along the inlet path to the pump 714. [0057] The hose reel 716 includes a hub 722 or a drum upon which a hose may be wound. Flange ends 724 of the hose reel 716 form boundaries to the hub 722. The hose reel guide 720 moves back and forth along a track 726 as the hose reel 716 rotates. The hose is laid onto the reel 716 in an orderly manner, such as with side-by-side coils in overlaying rows, with a first row formed as the guide 720 moves in one direction, a second row formed as the guide 720 moves back, and so forth. The pump 714 has an outlet pipe 718 that 718 extends into the center of the hub 722 and includes a hose coupling 754 that rotates within the hub 722, allowing the outlet pipe 718 to remain stationary. The hose coupling 754 connects to a garden hose wound on the reel. The hose reel 716 is a "live" hose reel in that it is configured to support a pressurized hose. For example, the pump 714 may supply higher pressure and flow rate water while the hose is wound on the reel 716, without the hose unwinding from the reel 716. In some embodiments, ratcheting members, pawls, or gears limit rotation of the reel 716 reacting to torque in the reel 716. [0058] FIGS. 9-14 show embodiments of sprayer systems 810, 910 that are similar to systems 1010, 1110, 1211, and 1410 of FIGS. 15-21 to be discussed. Systems 810 and 910 operate with a broom variable outlet 940 and a brush variable outlet 840 in place of the sprayer variable outlet 1040 having a multi-patterned nozzle (e.g., as shown in FIGS. 16 & 17). Some features compatible with the embodiment systems 810, 910 such as pumps, faucets, flow monitoring switches, and the like are not shown in FIGS. 9-14, because they are similar to those corresponding features presented in other figures and description provided herein. -12- WO 2010/111185 PCT/US2010/028157 [0059] Referring to FIGS. 9 and 10, the system 810 includes a brush variable outlet 840 that further includes a biased release trigger 854 coupled to a flow restriction valve 850, a brush head 842, and a flow control valve 852. Like the valve 952 for the broom variable outlet 940, one way to increase or decrease water flow through the system 810 is to adjust the flow control valve 852, which is shown as a constriction valve coupled to a pressable and lockable button. FIG. 10 shows an exemplary embodiment of the brush head 849 including hydraulically driven brush head parts, where a circular inner brush rotates relative to an outer brush. Additionally, the brush variable outlet system 810 includes a chemical storage container 872, for holding a chemical such as liquid soap, solvent, detergent, wax, and the like. Chemicals stored within the container 872 may then be added to the water flow through the outlet port 874 on the bottom of the brush, as shown in FIG. 10. In other embodiments, the chemicals may be added to the water flow at other points in the system 810, such as before the pump, after the pump, and within the variable output 840. [0060] Referring to FIGS. 11-14 the system 910 includes a broom variable outlet 940 that further includes a biased release trigger 954 coupled to a flow restriction valve 950, a brush head 942, and a flow control valve 952. A way to increase or decrease water flow through the system 910 is to adjust the flow control valve 952, which is shown as a constriction valve coupled to a rotatable knob. FIGS. 12-14 show exemplary embodiments of the brush head 942 wherein both embodiments include hydraulically driven brush head parts. In other embodiments brush heads may be driven by motors. The first brush head 942 of FIG. 12 includes parallel scrubbers that move back and forth relative to each other. The brush head 949 of FIG. 13 includes two circular scrubbers, one circumscribed by the other, where either one of the circular scrubbers rotates and the other remains fixed, or both rotate at different rates and/or in opposite directions. FIG. 14 shows a brush with two concentric-circular brush heads 949, both like the brush of FIG. 13, where the heads 949 of FIG. 14 are mechanically coupled to rotate in opposite directions. Additionally, the broom variable outlet system 910 further includes a chemical storage container 970 (e.g., liquid soap container) for chemical injection into the water flow, and a twisting telescoping-pole height adjustment control joint 981, such that the length of the broom (e.g., distance between trigger 954 and brush head 942) can be increased or decreased, and locked into a specific length. -13- WO 2010/111185 PCT/US2010/028157 [0061] Referring now to FIGS. 15-17, a garden hose spray system 1010 embodiment that includes a pump 1030 is shown according to an exemplary embodiment. The garden hose spray system 1010 is configured to be coupled to an existing, conventional garden hose system including a hose 1016 coupled to, for example, a typical garden hose fitting or coupling connector 1014 (e.g. three-quarters inch female garden hose connector, hose bib, hose faucet, sillcock, threaded coupling, hose fitting, etc.). According to another exemplary embodiment, a similar garden hose sprayer system may be coupled to a water supply with a permanent plumbing (e.g., brass pipes, PVC pipes, and the like). According to a preferred embodiment, the pump 1030 is a centrifugal pump driven by motor 1032. The pump 1030 includes a connector or connectors for attaching a garden hose, such as a three-quarters inch female and/or male fitting, snap-lock, and/or other connector. The water is drawn into the pump 1030 by a rotating impeller through an input 1034 opening, port, hole, and the like and expelled through an output 1035. The output 1035 is connected to a hose coupler 1036, which allows for releasable attachment of a garden hose. The pump 1030 is configured to energize (i.e., add kinetic or potential energy to, as opposed to electrify) the water flow, such as by converting the centrifugal force of the rotating impeller to an increased static pressure of the water flow and, in turn, increasing a related pressure and a flow velocity with which the water flow exits the garden hose spray system 1010. [0062] In some embodiments, the motor 1032 is a alternating current electric motor, and the motor 1032 is compatible with a standard household electrical system (e.g., 1020-volt motor). An electrical plug and cord may couple the motor to a current source. In other embodiments the motor 1032 is powered by a direct current electric motor and battery. In still other embodiments the motor 1032 is a combustion engine. [0063] Certain embodiments of the present invention relate to a booster for a garden hose as opposed to a "true" pressure washer. Conversely, it should be noted that some "pressure washers," especially the heavy duty pressure washers, can damage objects that are hit directly by a correspondingly high-powered water stream or by an object propelled by the high-powered stream. However, some embodiments of this invention provide a mechanism for energizing a water stream from a household water system with an increased flow rate and/or pressure that is suitable to everyday-type cleaning applications. For example, in certain scenarios, such as for cleaning operations (e.g., removing stuck-on plant debris from a vehicle; dried-on bird waste from a window; or spider webs from an eve of a high roof -14- WO 2010/111185 PCT/US2010/028157 line, out of reach of a garden hose having unboosted pressure and flow) a user may desire an increased flow rate and/or pressure beyond the capabilities of a garden hose and faucet without a booster pump, but not with the reduced flow rate and much higher pressures of "true" pressure washers. Thus, according to some exemplary embodiments, pumps associated with the presently claimed invention have a maximum pressure capacity (e.g., maximum settings) of less than approximately 7 MPa (1000 psi), preferably less than approximately 4 MPa (600 psi), and even more preferably less than approximately 1.5 MPa (200 psi). For example, in a preferred embodiment the maximum pressure capacity (e.g., maximum setting) is less than approximately 400 kilopascals (kPa) (60 psi); and in another preferred embodiment it is less than approximately 550 kPa (80 psi). Also, certain exemplary embodiment systems have a water flow rate capacity (e.g., maximum setting) of at least approximately 250 cm 3 /s (4 gpm), preferably at least approximately 325 cm 3 /s (5 gpm), and even more preferably at least approximately 350 cm 3 /s (5.5 gpm). For example, in a preferred embodiment the water flow rate capacity (e.g., maximum setting) is approximately 375 cm 3 /s (6 gpm). In some embodiments, activating the pump increases the water flow rate by a magnitude approximately greater than 1.25 but less than five, preferably by a magnitude approximately greater than 1.5 but less than three, such as approximately two. [0064] While the pump 1030 is a centrifugal-type pump, other embodiments utilize other styles of pumps, including reciprocating pumps and/or positive displacement pumps. For example, at least one embodiment includes a pump that uses a piston-style positive displacement pump. Centrifugal pumps may be preferred over piston-style pumps because no bypass may be needed with the former for a water flow to continue to flow when power is not provided to the pump. It should be noted that in some exemplary embodiments the pump is an electric pump having a ground fault protection, such as a circuit breaker, fuse, and the like. The ground fault protection may help to protect a user from accidental electric shock. Additionally, the ground fault protection may help to protect the pump system from short-circuiting, overloading, and the like, which may be damaging to the system. [0065] Still referring to FIGS. 15-17, according to an exemplary embodiment, a switch 1024 is part of a flow-sensitive switch assembly 1060 (or "flow monitoring switch") in a switch housing 1020 and dually functions as a pump controller, wherein the flow monitoring switch 1060 includes both a sensor portion 1022 and a switch portion 1024. The -15- WO 2010/111185 PCT/US2010/028157 sensor 1022 measures, detects, monitors, evaluates, and/or is affected by characteristics (e.g., flow rate) of the water flow through the garden hose spray system 1010, and thus providing the sensor a status based upon the flow characteristics. For example, in the system 1010, the sensor 1022 is coupled to the pump 1030 proximate to an inlet 1034 to detect a flow rate of water into the pump 1030. The flow monitoring switch 1060 is configured to recognize a threshold flow rate such that the flow monitoring switch 1060 is engaged (e.g., "on" or a closed switch) for water flowing above the threshold flow rate and disengaged (e.g., "off' or an open switch) for water flowing below the threshold flow rate. Flow monitoring switches may be less expensive than gauges for measuring water pressure or other flow characteristics, and therefore may be desirable to reduce the overall cost of a garden hose sprayer system. [0066] While the sensor 1022 is shown as part of a simple flow-sensitive mechanical switch 1060 in FIG. 15, according to other exemplary embodiments, other suitable gauges, sensors, meters, and the like may be provided to sense flow rates of the water flow through the garden hose spray system 1010. For example, a variant exemplary sensor may include an induction magnetic switching device with a biased magnetic "torpedo" provided within the flow that is sensed by a magnetically-sensitive switch provided outside of the flow. Other embodiments include flow sensors such as Venturis, pitot static tubes, spinning pin wheels, paddles with spring arms, and the like. [0067] As shown in FIG. 15, according to an exemplary embodiment, the garden hose sprayer system 1010 includes an additional, manually-operated on/off switch 1062 and housing. The manually-operated switch 1062 may be provided in series with the flow sensitive mechanical switch 1060, wherein if the manually-operated switch 1062 is in the off position, the pump 1030 will not be activated, but if the manually-operated switch 1062 is in the on position, then the pump 1030 may be activated by the flow sensitive switch 1060 or its analog. In a different embodiment, a manually-operated switch 1062 is provided in parallel with the flow sensitive switch 1060 or its analog, such that the manually-operated switch 1062 can function as an override, activating or deactivating the pump 1030 regardless the flow rate. In some embodiments, the housing further includes a capacitor, a motor control circuitry, a power switch, a circuit breaker, and other electronics. The plug may be a standard plug and may include a ground fault circuit interrupter. -16- WO 2010/111185 PCT/US2010/028157 [0068] Energized water flow exits from the pump 1030 through the outlet 1035. According to an exemplary embodiment, a flexible hose 1017, such as a common garden hose, is coupled to the outlet 1035 with the hose coupler or garden hose connector 1036 (e.g., threaded fittings, quick connect, snap fittings, and the like). The flexible hose 1017 may be made from a wide variety of commonly known materials such as vinyl, rubber, composite, and the like, as previously discussed with regard to FIG. 3. For example, typical garden hose (or "hosepipe") characteristics may vary depending design choice, such as hose dimensions, gauge, material, reinforcement, and the like. Some exemplary garden hoses are constructed of a synthetic rubber and/or soft plastic. As previously described, these hoses are reinforced with internal or external fiber webbings, such as nylon or polyester tire-cords. Certain exemplary hoses are "reinforced vinyl" garden hoses. Due the variety of design choices and available materials, different commercial garden hoses have a broad range of "burst strengths" or "burst ratings," the maximum allowable internal pressures that a hose can withstand before rupture. Some exemplary lower-quality hoses have a burst rating of about 1.4 MPa (200 psi). Other exemplary medium-quality hoses have burst ratings ranging from about 1.9 to 2.4 MPa (275 to 350 psi). Still other exemplary higher-quality garden hoses have burst ratings from about 2.4 to 3.4 MPa (350 to 500 psi) or higher, such as about 7 MPa (1000 psi). Therefore, booster water spraying systems, such as those described herein that may operate with typical garden hoses, may be better suited for such operation than "true" pressure washers due to characteristics of the garden hoses, such as their "burst ratings." [0069] A variable outlet 1040 (e.g., sprayer, nozzle, spout, head, fountain, sprinkler, flow sink, and the like) may be provided on a remote end of the hose 1017. The variable outlet 1040 is coupled to the hose 1017 with a commonly known fitting or coupling and is configured to allow a user to manage the water flow out of the garden hose sprayer system 1010 (e.g., point and spray). According to some preferred exemplary embodiments, the variable outlet 1040 may include multiple mechanisms for controlling water output, such as a rotatable head portion 1042, which may include a plurality of patterned openings 1046, 1048 of different sizes and/or shapes; a flow restriction valve 1050; and/or a flow control valve 1052. [0070] In some embodiments the flow-restriction valve 1050 is manipulated by a trigger 1054 located on the variable output 1040. The flow-restriction valve 1050, for example, -17- WO 2010/111185 PCT/US2010/028157 may be configured to be opened when a user pulls the trigger 1054, allowing water to be expelled from the variable output 1040 through one of the openings 1046, 1048, and closed when a user releases the trigger 1054. To this end, the flow-restriction valve 1050 may be biased to the closed position with a spring, an elastic band, a counterweight, and/or other suitable biasing member. [0071] The variable output 1040 may also include a chemical container 1072 for storing and transferring chemicals into the water flow. For example, the container may hold a liquid plant fertilizer that is pulled into the water flow by a lower pressure Venturi within the flow path (much like fuel insertion in air passing through a carburetor of a combustion engine, or aeration systems in fish tanks). In other embodiments, mechanical energy is transferred from pulling the trigger 1054, to squeeze chemicals from the container into the water flow. [0072] As shown in FIG. 16, the rotatable head portion 1042 includes at least a larger opening 1048 and a smaller opening 1046 through which water may exit from the variable outlet 1040. For example, the head portion 1042 may be adjusted such that the water flow exits the variable outlet 1040 through either the smaller opening 1046 or the larger opening 1048. The larger opening 1048 allows a greater flow rate through the garden hose sprayer system 1010 than the smaller opening 1046. According to other exemplary embodiments, the water flow may exit through a variety of other openings of differently-shaped patterns having cross-sectional areas of greater or lesser discreet magnitudes relative to openings 1046, 1048. [0073] As shown in FIG. 17, according to still other exemplary embodiments, the head portion 1042 may include a single, continuous opening with a varied cross-sectional width 1049 instead of a plurality of discreet openings. By exposing different portions of the single opening 1049 to the water flow, the water exit stream may pass through openings with different cross-sectional areas, affecting the flow rate in a manner similar to the different sized discreet openings 1046, 1048 in FIG. 17. In still other embodiments, the head portion 1042 may include a screw-type constricting valve for varying the nozzle opening cross sectional area. [0074] According to still other exemplary embodiments, a user may adjust the flow rate of the variable output 1040 with a flow control valve 1052. Such a valve 1052 may be -18- WO 2010/111185 PCT/US2010/028157 provided internally in the variable output 1040 and be any of a wide variety of different types of valves (e.g., a gate valve, poppet valve, plug valve, butterfly valve, globe valve, ball valve, etc.). Embodiments including a flow control valve 1052 may gradually constrict or release water flow through the outlet 1040, for example, by tightening or loosening the valve, such as by a knob and screw mechanism. [0075] Referring to FIGS. 18-19, block diagrams of similar garden hose spray systems 1110, 1211 are shown according to exemplary embodiments. In FIG. 18, the garden hose spray system 1110 is configured to be coupled to a typical household or commercial property water supply/source 1112 (e.g., hose bib, faucet, and the like). A pump 1130 is provided to energize a water flow through the system 1110, such as to increase water pressure, momentum, work, temperature, exit velocity, flow rate, and/or other characteristics of the water flow that are functions of energy. The pump 1130 is powered by a power source 1118, such as a AC current source, a DC current source, a gas-powered electric generator, a combustion engine, a solar panel array, a battery, and/or another power source. [0076] The garden hose spray system 1110 further includes a controller 1120 in communication (e.g., fluidic, mechanical, wired, wireless, and/or other communication) with the pump 1130, and the controller 1120 operates a switch 1124 provided between the power source 1118 and the pump 1130. Closing the switch 1124 allows power to drive the pump 1130 and opening the switch 1124 prevents power from driving the pump 1130. [0077] In the FIG. 18 embodiment, the controller 1120 is further coupled to a sensor 1122. The sensor 1122 detects, monitors, senses, and/or is affected by the flow rate of the water flow through the garden hose spray system 1110. In some embodiments, the sensor 1122 can distinguish between a no-flow condition and a positive flow condition. In another set of embodiments, the sensor 1122 can distinguish between two or more different positive (non zero) flow rates. The controller 1120 uses readings from the sensor 1122 to operate the switch 1124 to activate the pump 1130. Pump 1130 activation as a function of a non-zero flow rate may be especially useful for situations where a lower pressure, lesser flow is desirable; along with a quick adjustment to a more powerful high flow, such as switching between gently watering flowers to removing dried-on mud from a deck floor. -19- WO 2010/111185 PCT/US2010/028157 [0078] The garden hose spray system 1110 further includes a variable outlet 1140 operable at a first flow setting and a second flow setting, such as a sprayer head, nozzle, spraying brush, and the like, with adjustable flow rate settings having a plurality of discreet "calibrated" outlet cross-sectional patterns, as shown in FIG. 17 for example. For example, the first flow setting may correspond with a non-zero flow rate less than a threshold flow rate and the second flow setting may correspond with a flow rate greater than the threshold. The sensor 1122 can determine which setting is operating by reading a corresponding flow rate. In some embodiments, the controller 1120 then directs, operates, manipulates, adjusts, and/or flips the switch 1124 to activate the pump 1130 when the water flow rate exceeds the predetermined, non-zero threshold flow rate. Exemplary threshold values range from approximately 60 to 300 cm 3 /s (1 to 5 gpm), preferably from approximately 125 to 250 cm 3 /s (2 to 4 gpm). Exemplary threshold values range even more preferably from approximately 150 to 225 cm 3 /s (2.5 to 3.5 gpm), such as 190 cm 3 /s (3 gpm). In still other embodiments, the threshold can be manually changed by adjusting the bias of a biasing member (e.g., spring position, flexible rod length, and the like) associated with the sensor 1122 for example. [0079] According to one exemplary embodiment, as shown in FIG. 18, the sensor 1122 is provided between the water source 1112 and the pump 1130. However placement of the sensor 1122 in the system 1110 may vary with embodiments within the scope of the invention. In other exemplary embodiments, a sensor is provided after a pump outlet either between the pump 1130 and the variable outlet 1140, or as part of the variable outlet 1140. Additionally a valve 1150 may be placed in series with the system 1110, to prevent flow of water through the system when the valve 1150 is closed, and to allow flow when the valve 1150 is open. For example, the valve 1150 may be coupled to a squeeze-operated handle or trigger, a rotatable flow-blocking gate, a constricting valve, and/or the like. [0080] In the embodiment of FIG. 19, the garden hose spray system 1211 also includes a pump 1230 that may be activated by a controller 1220 and switch 1224 coupled to a power source 1218, and the system 1211 may be coupled to a water source 1212. In the system 1211, a variable outlet 1240 is in a wireless communication (e.g., radio frequency or other electro-magnetic radiation, including a receiver and transmitter, as shown in FIG. 19, which may be in signal communication between the controller and the variable outlet, the variable outlet and the pump, and between other parts) with the controller 1220 such that selection of -20- WO 2010/111185 PCT/US2010/028157 a variable outlet setting, and possibly other information such as valve release by a trigger on the variable outlet 1240, is communicated to the controller 1220. According to another exemplary embodiment, a flow rate sensor is provided proximate to the variable outlet 1240. In still other embodiments, a wired communication cable connects the variable outlet 1240 to the controller 1220, for example, the wire is coupled to a hose connecting the variable outlet with the pump 1230 and controller 1220 (see also FIG. 5). [0081] FIG. 20 presents a matrix 1380 that summarizes a control logic for operation of the embodiment system 1110 of FIG. 18. On one side 1382 of the matrix 1380 is a valve 1150 condition: an opened or closed valve condition. On another side 1384 of the matrix 1380 is a positive flow rate condition: a higher flow condition above a threshold 1386, and a lower flow condition below the threshold 1386. For example, instead of a distinction between a zero-flow condition versus a positive-flow-rate condition being a factor for controlling pump 1130 activation, the pump 1130 is activated by the controller 1120 capable of distinguishing between at least two positive flow rates of water through the garden hose spray system. According to the control matrix 1380 embodiment, the pump 1130 is only activated when both the valve 1150 is open and the higher flow rate setting is used. Activating the pump 1130 only at times when additional boosting with a high flow-rate is desired, reduces the amount of time the pump 1130 is active, which may further reduce power consumption, noise, wear on moving parts, and the like associated with the operation of the pump 1130. For example, a controller with logic designed to implement the rules of the control matrix 1380 may be more efficient in terms conservation of energy, as well as conservation of user control effort and time, than controllers that automatically turn on a pump when a positive flow rate is sensed regardless of rate, because a garden hose user may not need (or want) a boosted flow for many applications or sub-applications (such as watering the flowers). [0082] A logic module, algorithm, and/or scheme configured to apply the logic presented in the matrix 1380 may be implemented in several steps. In some embodiments, a sensor may produce a reading, and the reading may be relayed to a control circuitry, as discussed below in regard to FIG. 21. The sensor reading may be converted to a relevant parameters, for example by amplifying the reading, filtering noise from the reading, and digitizing the reading. The reading may then be compared to a designated threshold, such as threshold 1386 and/or other thresholds, or a threshold computed in a processor based in part upon the -21- WO 2010/111185 PCT/US2010/028157 reading. The comparison may occur in a processor under instructions of the logic module, which may be stored in a memory of a computer for example. If the sensor reading corresponds to a parameter exceeding the threshold parameter, then the processor may output a command that may be relayed to a pump or to a switch governing power to the pump. The command may direct the pump to activate and/or to operate at a particular speed, capacity, level and the like. In other embodiments, the command may activate a delay timer set to a predetermined period. Following the period, another command may be relayed to the pump and/or to the switch. If the sensor reading corresponds to a parameter not exceeding the threshold, then the processor may output a different command. For example, the different command may deactivate the pump, or change the pump speed, capacity, level and the like. In still other embodiments, a logic module may incorporate steps that open and close a valve on a variable outlet, or adjust a spray opening cross sectional area on the variable outlet. [0083] In some embodiments, where the motor is a combustion engine, a logic module (or algorithm) may include a controller interaction with components for controlling the combustion engine. For example, if a flow sensitive switch senses a positive flow, and relays the flow information to the controller, the controller may then activate a solenoid that engages a clutch (e.g., centrifugal clutch) coupled to a crankshaft of the engine (e.g., acting as a mechanical switch). The crankshaft may then power the pump. However, if the flow sensitive switch senses no flow, or a positive flow rate less than a threshold flow rate, then the controller may activate a solenoid to disengage the clutch, idle the engine, and decouple the crankshaft from the pump. In some exemplary embodiments with combustion engines, variant logic algorithms may have the controller idle the engine when the flow is below the threshold, turn off the engine, or idle the engine for a set time period of sensed flow rate below the threshold before turning off the engine. [0084] Other embodiments, such as those similar to system 1211 of FIG. 19, operate without a flow control valve. For example, water continuously flows through the system 1211, either with the pump 1230 on or off when the water source is actively supplying a water flow to the system. As such, a control matrix for the system 1211 would not distinguish between conditions of the valve 1382, and instead the controller 1220 would simply activate the pump 1230 upon sensing a water flow rate 1384 greater than the non zero threshold 1386. -22- WO 2010/111185 PCT/US2010/028157 [0085] FIG. 21 shows an exemplary booster water spraying system 1410 as a block diagram. Similar the systems 1110, 1211 of FIGS. 18-19, the system 1410 of FIG. 21 includes a pump 1430 and a variable outlet 1440, and the system 1410 is attachable to a water source 1412 and a power source 1418. The system 1410 also has a controller 1420 or control circuit, which may include a computer, microprocessor, an application specific integrated circuit, an analog computer, a digital computer, a supercomputer, a computer network, a laptop or desktop computer, a calculator, a hybrid, and the like. [0086] Further referring to FIG. 21, the controller 1420 has a control circuit 1423 electrically coupled to a switch 1424 and a sensor 1422. In some embodiments, the sensor 1422 measures a water flow state in or related to the system 1410, such as flow rate, pressure, velocity, momentum, temperature, and other state characteristics. In other embodiments, the sensor 1422 measures parameters that may be related to the water flow state, such as strain or stress in a hose wall, time, vibration amplitude or other parameters. In some embodiments, the switch 1424 is an electrical switch able to allow or deny electrical power to the pump. In other embodiments, the switch 1424 is a mechanical switch able to allow or deny power to the pump 1430, such as a clutch-type switch, a hydraulic or pneumatic bypass-type switch, and the like. The switch 1424 may be opened, closed, governed, controlled, actuated, adjusted, manipulated, and the like by the controller 1420 and/or a user, such as by communicating a command to an electric switch driver, an electric actuator, a mechanical actuator, a hydraulic or pneumatic actuator, by hand, and the like. [0087] The control circuit 1423 of FIG. 21 further includes a processor 1425, a logic module 1427, a memory 1429, and a user interface 1471. Additional interfaces 1473, 1475 may allow for data transmission and other communication between the controller 1420 and the sensor 1422, the pump 1430, the variable outlet 1440, and/or other items. The interfaces 1471, 1473, 1475 may be coupled via data transmission or communication media, such as fiber optic or coaxial cable, wiring, radio or infrared signal transmitters and receivers, hydraulic or pneumatic channels, mechanical linkages, and the like. The logic module 1427 of the controller 1420 may receive inputs from the sensor 1422, the pump 1430, the variable outlet 1440, and/or other items such as a digital clock, a band-pass filter for removing electronic noise, and the like. For example, one input could be a measured flow rate and another input could be a measured time, such as for a series of logical steps that include a -23- WO 2010/111185 PCT/US2010/028157 time delay step, prior to a pump response step that is in reaction to a sensed change in flow rate step. Additional inputs may be delivered to the controller 1420 via the user interface 1471, which is shown in FIG. 21 as a turnable knob or dial to adjust the flow rate threshold, for example. Other user interfaces include keyboards, touch-sensitive screens, buttons, toggles, and the like. [0088] In some embodiments, the logic module 1427 is configured to implement one or more steps based upon the matrix shown in FIG. 20. In other embodiments, the logic module 1427 includes response time delay steps, threshold adjustment steps in response to variable output settings selection steps, and other steps. Inputs and logic may be evaluated, analyzed, manipulated, calculated, and the like by the processor 1425. The processor 1425 and/or one or more components coupled to processor 1425 may be configured to provide a controller output signal or command to other components in the system 1410, such as the pump 1430, the variable outlet 1440, switches 1424, 1451, the sensor 1422, and/or other circuit elements. As such, the output signal or command (e.g., a magnitude, a frequency, and the like) may be based upon calculations performed in the processor 1425. [0089] The processor 1425 can be or include one or more processing components or processors. The processor 1425 can be a general purpose processor, an application-specific integrated circuit, and/or any other collection of circuitry components configured to conduct the calculations or to facilitate the activities described herein. The processor 1425 can be configured to execute computer code, script code, object code, and/or other executable instructions stored in memory 1429, other memory, or in the processor 1425. In some embodiments, the memory 1429 may store coded instructions, such as the logic module 1427, in various states, such as volatile, non-volatile, RAM, ROM, solid states, and the like. In certain embodiments, the logic module 1427 may be stored in a separate memory, such as a memory of one or more remote computers coupled to the system 1410 via an external computer network, local area network, and/or the internet. [0090] Also referring to FIG. 21, the variable outlet 1440 includes a valve 1450 and a hydraulic switch 1451, wherein the hydraulic switch 1451 has two positive flow settings: a higher-flow setting 1448 and a lower-flow setting 1446. The variable outlet 1440 may be powered hydraulically from the water flow, from the power source 1418, from batteries, and/or from another source. As mentioned, the variable outlet 1440 may be in -24- WO 2010/111185 PCT/US2010/028157 communication with the controller 1420 through an interface 1475. Like the switch 1424, the hydraulic switch 1451 may be adjusted by the controller 1420 and/or a user via a switch driver or an actuator. [0091] Referring to FIG. 22, a booster pump system 1510 includes a water pump 1512 and a hose reel 1514. The pump 1512 includes an inlet 1544 and an outlet 1546, with the outlet 1546 coupled to a pipe 1548 that directs water to the hose reel 1514. [0092] In FIG. 22, components related to the water pump 1512 include an inlet hose coupling 1516 (see also fitting 344 as shown in FIG. 3, fitting 472 as shown in FIG. 5), a flow-sensitive switch 1518, a check valve 1520, a pressure sensor 1522 or a pressure sensitive switch, and a motor 1524. The motor 1524 is an electric motor with a power cord 1526. In other embodiments, the motor may be powered by batteries, or the motor may be a combustion engine powered by gasoline, diesel, or other fuels. The pump 1512 is a centrifugal-type pump. In other embodiments, different types of pumps are used, including reciprocating pumps or positive displacement pumps. For example, at least one embodiment includes a pump that uses a piston-style positive displacement pump. Centrifugal pumps may be preferred over piston-style pumps because no bypass may be needed with centrifugal-type pumps for water to flow through the pump when power is not provided to the pump. In some embodiments the pump is electrically-powered and has a ground fault protection, a circuit breaker, or a fuse. [0093] Referring to FIG. 22, the booster pump 1512 may have a maximum pressure capacity (e.g., maximum settings) of less than 1000 psi, preferably less than 500 psi; and a water flow rate capacity of at least 4 gpm, preferably at least 5 gpm. In another embodiment, the booster pump 1512 is designed to raise water pressure by 20-200 psi, preferably between 50-100 psi; and to raise water flow rate by 0.5-5 gpm, preferably between 1-3 gpm. In at least one embodiment, the booster pump 1512 is designed to raise water pressure by about 80 psi and raise flow rate by about 2 gpm. [0094] In some embodiments, a sprayer, nozzle, sprinkler, or other outlet (e.g., spray nozzle 328 in FIG. 3) includes calibrated spray settings having different cross-sectional areas. In at least one embodiment, a sprayer has a first setting with a narrower opening than a second setting, and the sprayer can be adjusted such that either the first or the second setting may be used. At a constant back pressure, the first setting allows for a lower flow rate of water through the sprayer than the second setting. -25- WO 2010/111185 PCT/US2010/028157 [0095] Still referring to FIG. 22, according to an exemplary embodiment, the flow sensitive switch 1518 measures, detects, or monitors characteristics of water flow (e.g., flow rate) into the pump 1512. In at least one embodiment, the flow-sensitive switch 1518 is configured to measure water flow rate relative to a threshold flow rate. When the water flow rate exceeds the threshold flow rate, the flow-sensitive switch 1518 is closed (i.e., "on"), and when flow is below the threshold flow rate the flow-sensitive switch 1518 is open (i.e., "off'). Opening the flow-sensitive switch 1518 cuts power to the pump 1512, disengaging the pump 1512. In some embodiments, the threshold rate corresponds to calibrated settings on the sprayer, where the second setting generates a water flow rate above the threshold flow rate, closing the flow-sensitive switch 1518 and activating the pump 1512. The first setting reduces the water flow rate below the threshold flow rate, opening the flow-sensitive switch and deactivating the pump. Exemplary threshold flow rate values range from 1-5 gpm, preferably from 2.5-3.5 gpm. In some embodiments, the threshold can be manually adjusted. According to other embodiments, different commercially available gauges, sensors, meters, etc. may be provided to sense characteristics of the water flow. [0096] The system 1510 further comprises the pressure sensor 1522, which detects pressure changes through the system 1510. In some embodiments, the pressure sensor 1522 quickly distinguishes between a no-flow condition and a positive-flow condition by measuring back pressure. In some embodiments, the pressure sensor 1522 is coupled to the switch 1528, and power is cut to the motor 1524 of the pump 1512 when the pressure sensor 1522 senses that the sprayer, nozzle, sprinkler, etc. has stopped spraying. In some embodiments, the system includes a pressure sensor, but no flow-sensitive sensor. In other embodiments, the system includes a flow-sensitive sensor, but no pressure sensor. [0097] In FIG. 22, components related to the hose reel 1514 include a garden hose 1532, a transmission 1534, a motor 1536, a power switch 1550, the hose reel guide 720 (see FIG. 8), and a manual rewind 1538 (see also the manual rewind 318 in FIG. 3). The transmission 1534, the motor 1536, and the power switch 1550 correspond to a power rewind system 1540. Activation of the power rewind system 1540 both winds the hose 1532 and lays the hose 1532 on the reel 1514 in an ordered manner. Rotational power from the motor 1536 or the manual rewind 1538 is transferred through the transmission 1534 to the hose reel 1514. Some embodiments include parallel or planetary gearing reductions. According to an -26- WO 2010/111185 PCT/US2010/028157 exemplary embodiment, a 100-foot garden hose may be wound on the hose reel 716 (FIG. 8). In some embodiments the motor 1536 is an electric motor, powered through an electric cord 1542 or with a battery. [0098] The power cord 1526 includes a manually-operated on/off switch 1528 and a junction 1530 (e.g., splitter). The on/off switch 1528 may be provided in series with the flow-sensitive switch 1518, such that if the on/off switch 1528 is in the off position, the pump 1512 will not be activated; but if the on/off switch 1528 is in the on position, then the pump 1512 may be activated by the flow-sensitive switch 1518 or its analog. In another embodiment, the on/off switch 1528 is provided in parallel with the flow-sensitive switch 1518, such that the on/off switch 1528 may override the flow-sensitive switch 1518, activating or deactivating the pump 1512 regardless flow rate. [0099] The construction and arrangements of the booster water pump system as shown in the various exemplary embodiments, are illustrative only. Although only a few embodiments have been described in detail in this disclosure, many modifications are possible (e.g., variations in sizes, dimensions, structures, shapes and proportions of the various elements, values of parameters, mounting arrangements, use of materials, colors, orientations, etc.) without materially departing from the novel teachings and advantages of the subject matter described herein. Some elements shown as integrally formed may be constructed of multiple parts or elements, the position of elements may be reversed or otherwise varied, and the nature or number of discrete elements or positions may be altered or varied. The order or sequence of any process, logical algorithm, or method steps may be varied or re-sequenced according to alternative embodiments. Other substitutions, modifications, changes and omissions may also be made in the design, operating conditions and arrangement of the various exemplary embodiments without departing from the scope of the present invention. -27-

Claims

1. A booster system for use with a garden hose, comprising: a water pump having a motor, wherein the pump is configured to produce a maximum water pressure of less than 1000 psi; a garden hose connector coupled to the pump; a switch for engaging and disengaging the pump; and a hose storage structure for holding a garden hose proximate to the pump.

2. The booster system of claim 1, wherein the hose storage structure comprises a hose reel.

3. The booster system of claim 2, further comprising a portable wheeled-cart supporting the pump and the hose reel.

4. The booster system of claim 2, further comprising a stationary storage housing substantially enclosing the pump and the hose reel.

5. The booster system of claim 4, further comprising a controller coupled to the switch for automatically engaging and disengaging the pump based upon a flow rate of a water flow through the system.

6. The booster system of claim 5, further comprising a garden hose and a variable outlet configured to be attached to the garden hose, wherein the variable outlet comprises at least one of a sprayer, a brush, or a broom, and wherein the housing is configured to store the garden hose and the variable outlet.

7. A garden hose storage and booster system, comprising: a water pump; a garden hose connector coupled to the pump; a switch for engaging and disengaging the pump; a hose storage structure for holding a garden hose proximate to the pump; and a storage housing substantially enclosing the pump and the hose storage structure. -28- WO 2010/111185 PCT/US2010/028157

8. The storage and booster system of claim 7, wherein the hose storage structure comprises a hose reel.

9. The storage and booster system of claim 8, further comprising a variable outlet, wherein the variable outlet comprises at least one of a sprayer, a brush, or a broom, and wherein the housing is configured to store the variable outlet.

10. The storage and booster system of claim 9, further comprising a controller coupled to the switch for automatically engaging and disengaging the pump based upon a flow rate of water through the system.

11. The storage and booster system of claim 10, wherein the switch comprises a manually-operated on/off switch.

12. The storage and booster system of claim 11, wherein the water pump comprises a centrifugal pump driven by an electric motor.

13. The storage and booster system of claim 11, wherein the water pump comprises a centrifugal pump driven by a combustion engine.

14. The storage and booster system of claim 13, wherein the switch includes a solenoid coupled to a clutch configured to engage and disengage a crankshaft of the engine with the centrifugal pump.

15. A garden hose spray system, comprising: a pump for boosting a flow rate of a water flow through the system; a garden hose connector coupled to the pump; a controller in communication with the pump, wherein the controller engages the pump when the flow rate exceeds a non-zero threshold flow rate; and a variable outlet coupled to the pump, operable with a first flow setting for a flow rate greater than the threshold and a second flow setting for a non-zero flow rate less than the threshold.

16. The system of claim 15, wherein the controller comprises a flow-sensitive switch. -- 29-- WO 2010/111185 PCT/US2010/028157

17. The system of claim 16, wherein the controller is configured to disengage the pump upon sensing a flow rate less than the threshold, and to engage the pump upon sensing the flow rate greater than the threshold.

18. The system of claim 16, wherein the variable outlet comprises at least one of a sprayer, a brush, or a broom.

19. The system of claim 18, further comprising a flow-restriction valve coupled to the variable outlet and placed in a path of the water flow, wherein the valve is coupled to a biased trigger such that pulling the trigger opens the valve.

20. The system of claim 19, further comprising a chemical container for injecting a chemical into the water flow.

21. The system of claim 20, wherein the garden hose connector comprises a three-quarters inch female garden hose connector.

22. The system of claim 15, further comprising a radio frequency transmitter coupled to the variable outlet and a radio frequency receiver coupled to the pump, wherein the transmitter is configured to transmit a radio frequency signal to the receiver to indicate that the variable outlet is operating at the first flow setting or the second flow setting.

23. A garden hose assist system, comprising: a water pump having a motor, an inlet, and an outlet; a garden hose connector coupled to the pump; a flow rate sensor coupled to the pump, the sensor having a status based upon measuring a water flowing through the system relative to a non-zero, positive flow rate threshold; and a control circuit that engages the pump in response to the status of the flow sensor.

24. The garden hose assist system of claim 23, wherein the motor is an electric motor. -30- WO 2010/111185 PCT/US2010/028157

25. The garden hose assist system of claim 24, wherein the pump has a maximum setting configured to produce a water flow having a pressure of less than 1000 psi and a flow rate of greater than 4 gpm.

26. The garden hose assist system of claim 25, wherein the pump has a maximum setting configured to produce a water flow having a pressure of less than 200 psi and a flow rate of greater than 5 gpm.

27. The garden hose assist system of claim 25, wherein the control circuit includes a processor, a memory, and a logic module, and wherein the logic module includes instructions to engage the pump when the flow rate sensor has a status indicating a sensed flow rate that exceeds the threshold.

28. A garden hose booster control system, comprising: a water pump system including a motor, a radio frequency receiver, and a switch for engaging and disengaging the motor, and a variable outlet having a first flow rate setting, a second flow rate setting, and a radio frequency transmitter, wherein the transmitter is configured to transmit a radio frequency signal to the receiver to indicate that the variable outlet is operating at the first flow setting or the second flow setting; and a controller configured to adjust the switch based upon the signal.

29. The garden hose booster control system of claim 28, wherein the water pump is a centrifugal water pump driven by an electric motor, and wherein the pump is configured to produce a maximum water pressure of less than 1000 psi.

30. The garden hose booster control system of claim 29, further comprising a first garden hose connector coupled to the pump and a second garden hose connector coupled to the variable outlet. -31- WO 2010/111185 PCT/US2010/028157

31. A booster pump system for boosting a flow of water from a water source, comprising: a housing having a retractable handle; a water pump positioned within the housing, the pump having an inlet and an outlet, wherein the pump is configured to raise the pressure of the flow of water by an amount in a range of 20-200 pounds per square inch, and wherein the pump is configured to raise the flow rate of the flow of water by an amount in a range of 0.5-5 gallons per minute; and a hose reel positioned within the housing, wherein the hose reel supports a garden hose coupled to the outlet of the pump.

32. The system of claim 31, wherein the retractable handle slides from the housing to an extended position and releasably locks into the extended position.

33. The system of claim 32, wherein the retractable handle has telescoping extensions.

34. The system of claim 33, further comprising wheels coupled to a base of the housing, whereby the system may be rolled to a desired location of operation.

35. The system of claim 34, wherein the wheels are retractable.

36. The system of claim 35, further comprising a foot lever to extend the wheels.

37. The system of claim 36, wherein the wheels comprise at least two casters, and wherein the casters are configured to retract into the housing and extend from the housing. -32- WO 2010/111185 PCT/US2010/028157

38. A booster pump system for boosting a flow of water from a bibcock or faucet coupled to a water source, the system comprising: a housing comprising a cover and a storage area for storing accessories; a garden hose fitting coupled to the housing; a water pump positioned within the housing, the pump having an inlet coupled to the fitting, and an outlet, wherein the pump is configured to raise the pressure of the flow of water by an amount in a range of 20-200 pounds per square inch, and wherein the pump is configured to raise the flow rate of the flow of water by an amount in a range of 0.5-5 gallons per minute; and a hose reel positioned within the housing, wherein the hose reel supports a hose coupled to the outlet of the pump, and wherein the hose reel is configured to support the hose when the hose is pressurized with the boosted flow of water flowing therethrough.

39. The system of claim 38, wherein the storage area comprises a removable tray.

40. The system of claim 38, wherein the storage area comprises a sliding drawer.

41. The system of claim 38, wherein the storage area comprises a shelf fastened to the housing.

42. The system of claim 38, wherein the cover is hinged, and the system further comprises a releasable lock configured to hold the cover to the housing in a locked position.

43. The system of claim 42, wherein the storage area comprises a cavity on an exterior surface of the housing, and wherein the cavity is sized to store at least one of a sprinkler, a nozzle, or a spray gun.

44. The system of claim 43, further comprising a motor for winding the hose on the reel and a guide to direct the winding of the hose onto the reel, wherein the motor and the guide are positioned within the housing.

45. The system of claim 44, further comprising a retractable handle and retractable wheels, wherein the handle and the wheels retract into the housing. -33- WO 2010/111185 PCT/US2010/028157

46. A powered garden hose reel and booster pump system, comprising: a housing; a pump having an inlet and an outlet, the pump powered by a first electric motor, wherein the pump is positioned within the housing; a hose reel positioned above the pump within the housing, wherein the hose reel supports a hose coupled to the outlet of the pump; a second electric motor for winding the hose onto the reel; and a moving guide to direct the winding of the hose onto the reel.

47. The system of claim 46, further comprising a handle extending from an exterior of the housing, the handle configured for manual winding of the hose onto the hose reel.

48. The system of claim 47, wherein the handle is storable within a cavity on an exterior surface of the housing.

49. The system of claim 48, further comprising a retractable main handle and retractable wheels, wherein the main handle and the wheels retract into the housing.

50. The system of claim 49, further comprising a storage area within the housing, the storage area accessible by opening a cover of the housing, wherein the system further comprises a releasable lock configured to hold the cover to the housing in a locked position. -34-