AU2005204286A1 - Methods, apparatus and systems for the provision of supplementing water - Google Patents

Methods, apparatus and systems for the provision of supplementing water Download PDF

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Publication number
AU2005204286A1
AU2005204286A1 AU2005204286A AU2005204286A AU2005204286A1 AU 2005204286 A1 AU2005204286 A1 AU 2005204286A1 AU 2005204286 A AU2005204286 A AU 2005204286A AU 2005204286 A AU2005204286 A AU 2005204286A AU 2005204286 A1 AU2005204286 A1 AU 2005204286A1
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Australia
Prior art keywords
supplementing
water
demand
consumer
supply
Prior art date
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Abandoned
Application number
AU2005204286A
Inventor
Mark Andrew Lance
Hugh Barr Mcdonald
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Davey Products Pty Ltd
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Davey Products Pty Ltd
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Filing date
Publication date
Priority claimed from AU2003262296A external-priority patent/AU2003262296B2/en
Application filed by Davey Products Pty Ltd filed Critical Davey Products Pty Ltd
Priority to AU2005204286A priority Critical patent/AU2005204286A1/en
Priority to AU2005100775A priority patent/AU2005100775C4/en
Publication of AU2005204286A1 publication Critical patent/AU2005204286A1/en
Priority to AU2005101017A priority patent/AU2005101017B4/en
Abandoned legal-status Critical Current

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Description

AUSTRALIA
Patents Act COMPLETE SPECIFICATION
(ORIGINAL)
Class Int. Class Application Number: Lodged: Complete Specification Lodged: Accepted: Published: Priority Related Art: Name of Applicant: Davey Products Pty. Ltd.
Actual Inventor(s): Hugh Barr McDonald, Mark Andrew Lance Address for Service and Correspondence: PHILLIPS ORMONDE FITZPATRICK Patent and Trade Mark Attorneys 367 Collins Street Melbourne 3000 AUSTRALIA Invention Title: Lg METHODS, APPARATUS AND SY lSI6N OF SUPPLEMENTING Our Ref: 753345 POF Code: 113570/113570 The following statement is a full description of this invention, including the best method of performing it known to applicant(s): -1- 6006q 2 Methods, Apparatus and Systems for the Provision of Supplementing Water This application is a divisional application of Australian Patent Application No. 2003262296, the entire contents of which are incorporated herein by IND 5 reference.
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The present invention relates to rainwater harvesting and in particular to IND a system suitable for automatically interfacing stored water including rainwater 00 to a mains water supply network.
C)Rainwater harvesting systems are known. One such system is disclosed in EP 1201834 by Bogemar S.L. The known system includes an auxiliary storage tank that is filled with water from a mains network. A float valve maintains water in the auxiliary tank between preset levels. A three way electric valve is used to alternately establish a hydraulic connection between the inside of the auxiliary tank or a rainwater storage tank respectively and an inlet of a hydraulic pump. The hydraulic pump circulates water from the auxiliary tank or from the rainwater storage tank to a point of consumption.
One disadvantage of the prior art system is that a pump is required to deliver water not only from the rainwater tank but also from the mains network.
The pump therefore has to run whenever water is being consumed, including when the rainwater tank is empty. This makes the pump more liable to breakdown. A breakdown in the pump or an associated control system or a power outage means that water cannot be drawn either from the storage tank or from the mains network.
The discussion of the background to the invention herein is included to explain the context of the invention. This is not to be taken as an admission that any of the material referred to was published, known or part of the common general knowledge in Australia as at the priority date of any of the claims.
An object of the present invention is to alleviate the disadvantages of the prior art or at the very least to provide consumers with a choice.
According to one aspect of the present invention there is provided a system for supplementing a main water supply, said system including: means for detecting demand from a consumer; means for detecting presence of supplementing water; means for delivering said supplementing water to said consumer; W:provs\DP703173div.doc means for actuating said means for delivering in response to detecting
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0 said demand and said presence of said supplementing water; and b means for blocking said main water supply when said means for delivering is actuated.
5 According to a further aspect of the present invention there is provided a method of supplementing a main water supply, said method including the steps Iof: 00 detecting demand from a consumer; 0detecting presence of supplementing water; actuating delivery of said supplementing water to said consumer in response to detecting said demand and said presence of said supplementing water; and blocking said main water supply when delivery of said supplementing water is actuated.
The means for detecting demand may include a flow sensor. The means for detecting supplementing water may include a water sensor. The water sensor may be provided by any means suitable for detecting presence of supplementing water and/or a low level of water in an associated water storage tank or the like. The supplementing water may be delivered from the water storage tank. The water sensor may include a pressure sensor, float level switch, string resistor network (for comparative resistance measurement) or the like. The pressure sensor may be provided by any suitable means and may be located within a flange associated with the storage tank. The float level sensor may be provided by any suitable means and may be associated with a switch for actuating a hydraulic pump.
The means for blocking may include a solenoid valve adapted to block the mains water supply when the means for delivering the supplementing water is actuated. Alternatively, the means for blocking may include a pressure reducing regulator adapted to provide an output pressure that is below a pressure head supplied by the means for delivering the supplementing water.
An added benefit of a pressure reducing regulator is that it protects components against high pressure, reducing leaks and deformation of plastics and other sensitive components.
W:\provslDP703173div.doc VThe means for delivering the supplementing water may include a
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0 hydraulic pump. The pump may be located inside the water storage tank such
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b that it is at least partly submerged when water is present in the tank or it may be located outside the tank such as in a cavity below the tank.
I 5 The means for actuating the means for delivering the supplementing
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water may include a relay. The means for delivering may be actuated when IND presence of the supplementing water is detected (preventing loss of prime for 00 (Ni the pump) and the means for detecting demand detects flow of water above a Opredetermined threshold. The blocking means may include a non-return valve S 10 in series with the pressure reducing regulator. The non-return valve may be 0located upstream or downstream relative to the pressure reducing regulator.
Preferably the non-return valve is located such that it may be inspected and checked regularly.
The control system may be arranged such that an air break is not introduced in the mains water supply when supplementing water is not being consumed.
The present invention may provide a system for interfacing stored water to a mains water supply in a manner which is relatively seamless from the point of view of a consumer. The system may be arranged such that it does not detract from the usual benefits associated with a conventional mains water supply network, at least when rainwater is not available or is not being used.
The system of the present invention may be arranged such that it may be easily overridden or switched off by the consumer to obtain water directly from the mains network.
The system of the present invention may provide an uninterrupted supply of water in the event of a failure of a pump or associated controller or in the event of a power outage.
The system of the present invention may be arranged to minimize running of the pump, eg. at least when demand is relatively low or in the event of a slow leak. In those circumstances water demand may be supplied directly from the mains water supply network. This arrangement not only extends pump life but also saves power.
Viewed from another aspect, the present invention provides a system for supplementing a main water supply, said system including: W:\provsDP703173div.doc means for detecting demand from a consumer;
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means for detecting presence of supplementing water; D means for delivering said supplementing water to said customer; means for actuating said means for delivering in response to detecting 5 said demand and said presence of said supplementing water; and means for blocking said mains water supply when said means for 0 delivering is actuated, wherein said means for blocking includes a solenoid 00oo Svalve.
0 The present invention further provides apparatus for providing a consumer water network with a main water supply and a supplementing water supply, the apparatus including means for detecting a consumer demand and means for switching the input of the consumer system from said main supply to said supplementing supply when customer demand and the presence of supplementing water are detected, the means for switching including a solenoid valve in the main water supply and a delivery means in the supplementing supply, the solenoid valve being closed when the delivery means is activated.
The present invention also provides an interface unit for connection between a main water supply, a supplementing water supply and a consumer water network, the unit including: a conduit for coupling to the main water supply, the conduit having a solenoid valve therein; a conduit for coupling to the supplementing water supply; a conduit communicating with said main and supplementing water conduits for connection to the consumer water network; a demand sensor for sensing consumer demand; and a controller for receiving a demand signal from said demand sensor and a supplementing water signal from a supplementing water sensor, the controller closing said solenoid valve and instructing a pump of the supplementing water supply to deliver said supplementing water when said controller receives a demand signal that indicates a consumer demand and a supplementing water signal that indicates the presence of supplementing water.
The present invention further provides a method of supplementing a main water supply, said method including the steps of: detecting demand from a consumer; W:\provs\DP703173div.doc detecting presence of supplementing water;
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0 actuating delivery of said supplementing water to said consumer in tb response to detecting said demand and said presence of said supplementing
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water; and ND 5 blocking said main water supply when delivery of said supplementing water is actuated, wherein said blocking is performed via a solenoid valve.
IND Viewed from another aspect, the present invention provides a system for 00 Ssupplementing a main water supply, said system including: 0 means for detecting demand from a consumer above a predetermined threshold value; means for detecting presence of supplementing water; means for delivering said supplementing water to said customer; means for actuating said means for delivering in response to detecting said demand above said threshold value and said presence of said supplementing water; and means for blocking said main water supply when said means for delivering is actuated.
The present invention may also provide apparatus for providing a consumer water system with a main water supply and a supplementing water supply, the apparatus including means for detecting a consumer demand and means for switching the input to the consumer system from said main supply to said supplementing supply when said demand is above a threshold level and when supplementing water is determined to be present.
The present invention may further provide an interface unit for connecting a main water supply and a supplementing water supply to a consumer water network, the unit including: a conduit for coupling to the main water supply; a conduit for coupling to the supplementing supply; a conduit for connection to the consumer water network and communicating with said main water conduit and said supplementing water conduit; a demand sensor for sensing consumer demand; a controller for actuating a delivery means upstream of said supplementing supply conduit for delivering said supplementing water, when W:\provs\DP703173div.doc said controller receives a demand signal from said demand sensor that said
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(demand is above a threshold value and a supplementing water signal from a supplementing water sensor that indicates the presence of supplementing water; and ND 5 means for blocking said main water supply when said means for delivering is actuated.
IViewed from another aspect, the present invention provides an interface 00 Nunit for connection between a main water supply, a supplementing water 0supply, and a consumer water network, the unit including a housing, the
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housing having associated therewith: 0an inlet conduit for coupling to the main supply; an inlet conduit for coupling to the supplementing water supply; an outlet conduit in communication with said main and supplementing water inlet conduits for coupling to said consumer network; a demand sensor for sensing consumer demand; and a controller that receives a demand signal from said demand sensor and a supplementing water signal from a remote supplementing water sensor that indicates the presence of supplementing water; said controller instructing a pump to supply said supplementing water when said demand and supplementing water signals indicate customer demand and the presence of supplementing water, the unit including means for blocking the main water supply when the pump is activated.
Viewed from a still further aspect, the present invention provides a system for supplementing a main water supply, said system including: means for detecting demand from a consumer; means for detecting presence of supplementing water; means for delivering said supplementing water to said customer; means for actuating said means for delivering in response to detecting said demand and said presence of said supplementing water; and means for blocking said main water supply when said means for delivering is actuated; wherein said means for delivering and said means for blocking require a continuous electrical supply to remain in the blocking state and to deliver said W:\provs\DP703173div.doc supplementing water, such that when there is a break in the electricity supply, said main water is automatically supplied.
Preferred embodiments of the present invention will now be described
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with reference to the accompanying drawings wherein: IND 5 FIG. 1 shows a diagram of a rainwater harvesting system according to one embodiment of the present invention; \0FIG. 2 shows the system in FIG. 1 with a full tank and wherein water 00oo Sdemand is above a predetermined threshold; SFIG. 3 shows the system in FIG. 1 with a full tank and wherein water 'n 10 demand is below the predetermined threshold; SFIG. 4 shows the system in FIG. 1 with an empty tank and wherein demand is being satisfied by the mains supply network; FIG. 5 shows a wiring diagram associated with the system shown in FIGs. 1 to 4; FIG. 6 shows a diagram of a rainwater system according to another embodiment of the present invention; FIG. 7 shows a modification of the rainwater system shown in FIG. 6; and FIG. 8 shows a wiring diagram associated with the system shown in FIGs. 6 and 7; and FIG. 9 shows a cut away view of one embodiment of a rainwater harvesting system according to the present invention.
The rainwater harvesting system shown in FIG. 1 includes a storage tank for rainwater. Tank 10 is adapted to store storm water collected from a catchment means such as a roof of a building (not shown) via downpipe 11.
Water is drawn from tank 10 via flange 12. Hydraulic pump 13 is in fluid communication with flange 12 via an inlet conduit 14. Hydraulic pump 13 also is in fluid communication with one terminal of T-section coupling 16 via outlet conduit 15. Outlet conduit 15 is connected to the one terminal of T-section coupling 16 via non-return valve 17. The mains supply network is connected to another terminal of T-section coupling 16 via non-return valve 18 and normally open solenoid valve 19.
Consumer demand is sensed via flow sensor 20. Flow sensor includes a preset threshold so that small leaks and the like do not cause W:\provs\DP703173div.doC I unnecessary running of pump 13. Pump 13 is actuated via controller 21.
Controller 21 receives signals from flow sensor 20 and pressure sensor 22 to0 located in flange 12. Flange 12 is positioned above base 23 of tank 10 to avoid
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drawing sediment and other debris which may find its way into tank (NO 5 Pressure sensor 22 detects an acceptable head of water in tank 10 to avoid loss of prime in pump 13. Alternatively pressure sensor 22 may be positioned O in a conduit upstream of pump 13 such as inlet conduit 14. Alternatively 00 pressure sensor 22 may be replaced with a float level sensor/switch (not Sshown) located inside tank 10. The switch associated with the float level sensor '3 10 may be adapted to actuate pump 13 when the quantity of water in tank 10 is Sabove a predetermined minimum level. In some embodiments pump 13 may be submersible and may also be located inside tank 10. The float level sensor/switch may be attached to or integrated with the submersible pump.
When pressure sensor 22 detects that there is sufficient water above a preset level) in tank 10 and flow sensor 20 detects demand for water from a consumer above a preset threshold, controller 21 is arranged to close normally open solenoid valve 19 and to actuate pump 13. Closure of solenoid valve 19 causes water from the mains network to be cut off whilst actuation of pump 13 causes water to be drawn from tank 10 and pumped to the consumer via conduit 15, non-return valve 17 and T-section coupling 16.
FIG. 2 shows the system with sufficient water in tank 10 and wherein demand flow has been detected that is above a predetermined threshold, causing water to be drawn from tank 10 and supplied to the consumer in preference over the mains supply network.
FIG. 3 shows the system with sufficient water in tank 10 and wherein demand flow has been detected that is below the predetermined threshold.
Controller 21 has not actuated pump 13 and demand is supplied by the mains supply network avoiding unnecessary running of pump 13. One example of this includes a final stage of a toilet cistern filling cycle.
FIG. 4 shows the system with insufficient water in tank 10. Irrespective of the level of demand flow, controller 21 will not actuate pump 13 because pressure sensor 22 has detected low pressure in flange 12. Demand is therefore supplied by the mains supply network.
W:\provs\P703173div.doc SAdvantageously, in the event of a power outage or failure of pump 13, Scontroller 21 or sensor 20 or 22, water is seamlessly available from the mains Ssupply network. Even when sufficient water is available from tank 10, the consumer may elect to override the rainwater harvesting system by disabling INO 5 controller 21 via a suitable switch or the like (not shown).
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FIG. 5 shows a wiring diagram associated with the rainwater harvesting INO system of FIGs. 1 to 4. The system includes a controller (relay) 21 actuated via 00 normally open flow switch 20 and normally open pressure switch 22 connected in series. When pressure switch 22 is closed denoting that water level in tank S 10 10 is above a predetermined threshold and flow switch 22 is closed denoting Sthat water demand or flow is above a predetermined threshold, power from the AC mains is applied to controller (relay) 21 tripping it. When controller (relay) 21 is tripped it supplies power to normally open solenoid 19, causing it to close and block supply of water from the mains network. Controller (relay) 21 also supplies power to pump 13 causing it to run and to pump water from tank 10 to the consumer.
FIG. 6 shows a modification of the rainwater harvesting system in FIG. 1 wherein solenoid valve 19 is replaced with pressure reducing valve 24 upstream from T-section coupling 16. Operation of the modified system is similar to that described with reference to FIGs. 1 to 4 except that there is no solenoid valve 19 to block the flow of mains water when hydraulic pump 13 is actuated.
Instead blocking of mains water is performed by the series connection of pressure reducing valve 24 and non-return valve 18. Hydraulic pump 13 is arranged to supply an output pressure that is at least marginally greater than the output pressure associated with pressure reducing valve 24. This gives rise to pressure in T-section coupling 16 that is greater than the mains water pressure downstream of pressure reducing valve 24, preventing flow of mains water whilst hydraulic pump 13 is actuated and is supplying adequate pressure to T-section coupling 16. Dispensing with solenoid valve 19 may provide an advantage in some installations because it may avoid undesirable water hammer which can occur when solenoid valve 19 is switched off rapidly.
FIG. 7 shows an alternative arrangement that is similar to FIG. 6 except that the positions of pressure reducing valve 24 and non-return valve 18 are interchanged.
W:\provs\DP703173div.doc FIG. 8 shows a wiring diagram associated with the rainwater harvesting C system of FIGs. 6 and 7. The latter is identical to FIG. 5 except that solenoid 19 tis dispensed with. Operation of the system is also similar to that described with reference to FIG. 5 except that when relay 21 is tripped, it supplies power to ID 5 pump 13 only causing it to supply water under pressure to T-section coupling 16 that is sufficient to block supply of water from the mains network.
IND FIG. 9 shows a rainwater harvesting system according to one 00 embodiment of the present invention enclosed in a housing 25. The pump 13 is Cseparate from housing 25 and is connected thereto via water conduit 14. The system is similar to what is shown in the diagram of FIG. 6 and includes an inlet N of pressure reducing valve 24 connected to the mains supply via non-return valve 18. The outlet of pressure reducing valve 24 is connected to one terminal of T-section coupling 16. Another terminal of T-section coupling 16 is connected to the consumer via flow sensor 20. The third terminal of T-section coupling 16 is connected to pump 13 (not shown) via conduit 14. The system includes a low voltage power supply (transformer) 26 for energizing the controller (not shown). An input from a float level switch mounted in an associated rainwater storage tank (not shown) is connected via conduit 27.
Finally, it is to be understood that various alterations, modifications and/or additions may be introduced into the constructions and arrangements of parts previously described without departing from the spirit or ambit of the invention.
W:\provs\DP703173div.doc

Claims (34)

1. A system for supplementing a main water supply, said system including: ;Z means for detecting demand from a consumer; IND 5 means for detecting presence of supplementing water; means for delivering said supplementing water to said customer; IND means for actuating said means for delivering in response to detecting 00 Ssaid demand and said presence of said supplementing water; and Smeans for blocking said main water supply when said means for S 10 delivering is actuated, wherein said means for blocking includes a solenoid 0 valve.
2. The system of claim 1, wherein said means for detecting demand includes a flow sensor.
3. The system of claim 1 or 2, wherein said means for detecting supplementing water includes a pressure sensor.
4. The system of claim 1 or 2, wherein said means for detecting supplementing water includes a float level sensor.
The system of any one of the preceding claims, wherein said means for delivering includes a hydraulic pump.
6. The system of any one of the preceding claims, wherein said means for actuating includes a relay.
7. The system of any one of the preceding claims, wherein said means for actuating includes a relay in series with a switch means that is closed when the presence of supplementing water is detected and a switch means that is closed when consumer demand is detected.
8. The system of claim 6 or 7, wherein said relay further actuates said solenoid valve to block said main water supply. W:\provs\DP703173div.dOC
9. The system of any one of the preceding claims, wherein said solenoid hi valve is a normally open valve that is closed when said means for delivering is ;actuated. O The system of any one of the preceding claims, wherein said means for IND actuating actuates said means for delivery when consumer demand is above a 00 C preset threshold level.
V) 10
11. The system of any one of the preceding claims, wherein said means for detecting consumer demand is provided in a consumer supply conduit that receives water from either said main water supply or said supplementing water supply.
12. The system of any one of the preceding claims, wherein said means for detecting demand, said means for actuating said means for delivery, and said means for blocking are provided in an interface unit that connects with a means for detecting presence of supplementing water and a means for delivering said supplementing water.
13. The system of any one of the preceding claims, wherein said supplementing water is delivered from a rain water storage tank.
14. The system of any one of the preceding claims, wherein said main water supply is supplied from a mains water supply network.
The system of any one of the preceding claims, wherein said main water supply is supplied directly to the consumer without intermediate storage in a water tank.
16. Apparatus for providing a consumer water network with a main water supply and a supplementing water supply, the apparatus including means for detecting a consumer demand and means for switching the input of the consumer system from said main supply to said supplementing supply when W:provs\DP703173dv.doc 14 customer demand and the presence of supplementing water are detected, the Smeans for switching including a solenoid valve in the main water supply and a delivery means in the supplementing supply, the solenoid valve being closed ;when the delivery means is activated. (N
17. An interface unit for connection between a main water supply, a IND supplementing water supply and a consumer water network, the unit including: 00 a conduit for coupling to the main water supply, the conduit having a solenoid valve therein; r 10 a conduit for coupling to the supplementing water supply; Oa conduit communicating with said main and supplementing water conduits for connection to the consumer water network; a demand sensor for sensing consumer demand; and a controller for receiving a demand signal from said demand sensor and a supplementing water signal from a supplementing water sensor, the controller closing said solenoid valve and instructing a pump of the supplementing water supply to deliver said supplementing water when said controller receives a demand signal that indicates a consumer demand and a supplementing water signal that indicates the presence of supplementing water.
18. The interface unit of claim 17, wherein said controller includes a relay for providing power to said solenoid and said pump when said demand sensor indicates a consumer demand and said supplementing water sensor indicates the presence of supplementing water.
19. A method of supplementing a main water supply, said method including the steps of: detecting demand from a consumer; detecting presence of supplementing water; actuating delivery of said supplementing water to said consumer in response to detecting said demand and said presence of said supplementing water; and blocking said main water supply when delivery of said supplementing water is actuated, wherein said blocking is performed via a solenoid valve.
W:\provs\DP703173div.doc A system for supplementing a main water supply substantially as x hereinbefore described with reference to Figs. 1 to ID 5
21. A method for supplementing a main water supply substantially as (N hereinbefore described with reference to Figs. 1 to 00
22. A system for supplementing a main water supply, said system including: 0 means for detecting demand from a consumer above a predetermined V) 10 threshold value; means for detecting presence of supplementing water; means for delivering said supplementing water to said customer; means for actuating said means for delivering in response to detecting said demand above said threshold value and said presence of said supplementing water; and means for blocking said main water supply when said means for delivering is actuated.
23. The system of claim 22, wherein said means for detecting consumer demand is a flow sensor.
24. Apparatus for providing a consumer water system with a main water supply and a supplementing water supply, the apparatus including means for detecting a consumer demand and means for switching the input to the consumer system from said main supply to said supplementing supply when said demand is above a threshold level and when supplementing water is determined to be present.
An interface unit for connecting a main water supply and a supplementing water supply to a consumer water network, the unit including: a conduit for coupling to the main water supply; a conduit for coupling to the supplementing supply; W:\provsMDP703173div.doc 16 Sa conduit for connection to the consumer water network and 0 communicating with said main water conduit and said supplementing water (N b conduit; ;a demand sensor for sensing consumer demand; IN 5 a controller for actuating a delivery means upstream of said (N supplementing supply conduit for delivering said supplementing water, when IND said controller receives a demand signal from said demand sensor that said 00 N demand is above a threshold value and a supplementing water signal from a 0supplementing water sensor that indicates the presence of supplementing S 10 water; and 0means for blocking said main water supply when said means for delivering is actuated.
26. The interface unit of claim 25, wherein said demand sensor is a flow sensor.
27. The interface unit of claim 25 or 26, wherein said demand sensor is located in said conduit for connection to the consumer water network.
28. An interface unit for connection between a main water supply, a supplementing water supply, and a consumer water network, the unit including a housing, the housing having associated therewith: an inlet conduit for coupling to the main supply; an inlet conduit for coupling to the supplementing water supply; an outlet conduit in communication with said main and supplementing water inlet conduits for coupling to said consumer network; a demand sensor for sensing consumer demand; and a controller that receives a demand signal from said demand sensor and a supplementing water signal from a remote supplementing water sensor that indicates the presence of supplementing water; said controller instructing a pump to supply said supplementing water when said demand and supplementing water signals indicate customer demand and the presence of supplementing water, the unit including means for blocking the main water supply when the pump is activated. W:provs\ODP703173div.doc
29. The unit of claim 28, wherein the pump is remote from the unit.
The unit of claim 28 or 29, wherein the controller includes a relay for switching on said pump. 1
31. The unit of claim 28, 29 or 30, wherein said demand sensor senses 00 C water in said outlet conduit to determine demand. IC 10
32. A system for supplementing a main water supply, said system including: means for detecting demand from a consumer; means for detecting presence of supplementing water; means for delivering said supplementing water to said customer; means for actuating said means for delivering in response to detecting said demand and said presence of said supplementing water; and means for blocking said main water supply when said means for delivering is actuated; wherein said means for delivering and said means for blocking require a continuous electrical supply to remain in the blocking state and to deliver said supplementing water, such that when there is a break in the electricity supply, said main water is automatically supplied.
33. A system for supplementing a main water supply, said system including: means for detecting demand from a consumer; means for detecting presence of supplementing water; means for delivering said supplementing water to said consumer; means for actuating said means for delivering in response to detecting said demand and said presence of said supplementing water; and means for blocking said main water supply when said means for delivering is actuated.
34. A method of supplementing a main water supply, said method including the steps of: detecting demand from a consumer; W:\provs\DP703173div.doc I I 8 detecting presence of supplementing water; C actuating delivery of said supplementing water to said consumer in response to detecting said demand and said presence of said supplementing water; and C 5 blocking said main water supply when delivery of said supplementing water is actuated. 00 SDated: 26 August, 2005 S 10 PHILLIPS ORMONDE FITZPATRICK Attorneys for: SDAVEY PRODUCTS PTY LTD (N~Zh~rjm W:\provs\DP703173div.doc
AU2005204286A 2002-11-20 2005-08-26 Methods, apparatus and systems for the provision of supplementing water Abandoned AU2005204286A1 (en)

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AU2005204286A AU2005204286A1 (en) 2002-11-20 2005-08-26 Methods, apparatus and systems for the provision of supplementing water
AU2005100775A AU2005100775C4 (en) 2002-11-20 2005-09-20 Rainwater Harvesting
AU2005101017A AU2005101017B4 (en) 2002-11-20 2005-12-07 Rainwater Harvesting

Applications Claiming Priority (5)

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AU2002952773 2002-11-20
AU2003901039 2003-03-07
AU2003901540 2003-03-28
AU2003262296A AU2003262296B2 (en) 2002-11-20 2003-11-14 Rainwater harvesting
AU2005204286A AU2005204286A1 (en) 2002-11-20 2005-08-26 Methods, apparatus and systems for the provision of supplementing water

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AU2005100775A Division AU2005100775C4 (en) 2002-11-20 2005-09-20 Rainwater Harvesting
AU2005101017A Division AU2005101017B4 (en) 2002-11-20 2005-12-07 Rainwater Harvesting

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2008067616A1 (en) * 2006-12-08 2008-06-12 Black Adda Pty Ltd Change- over flow system
AU2006202589B2 (en) * 2005-05-20 2009-06-18 Silvan H2O Pty Ltd Supplementary water supply system
AU2009200908B1 (en) * 2008-03-07 2009-08-13 Rainmax Pty Ltd A water supply
WO2009140725A1 (en) * 2008-05-19 2009-11-26 Tandem Bicycle Pty Ltd Water interface unit for interfacing a supplementary water supply, eg rainwater, with a mains water supply
AU2007234628B2 (en) * 2006-11-21 2010-02-11 Silvan H2O Pty Ltd Selectable supplementary water supply system
GB2501116A (en) * 2012-04-13 2013-10-16 Downpour Ltd A rainwater harvesting system

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2006202589B2 (en) * 2005-05-20 2009-06-18 Silvan H2O Pty Ltd Supplementary water supply system
AU2007234628B2 (en) * 2006-11-21 2010-02-11 Silvan H2O Pty Ltd Selectable supplementary water supply system
WO2008067616A1 (en) * 2006-12-08 2008-06-12 Black Adda Pty Ltd Change- over flow system
AU2009200908B1 (en) * 2008-03-07 2009-08-13 Rainmax Pty Ltd A water supply
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