KR101236143B1 - Layered drainage and construction methods - Google Patents

Abstract

PURPOSE: A layered drainage apparatus and an installation method thereof are provided to easily block a bad smell, easily maintain a drain pipe and a waste pipe, and minimize floor noise from drainage. CONSTITUTION: A layered drainage method includes: a step(S10) of installing a layered drainage apparatus(100) in the concrete slab(C) of a bathroom or a toilet in a multi-storied building; a step(S12) of connecting a discharge standpipe(P5) in the multi-storied building and an outlet(113) in the layered drainage apparatus(100) by using a drain pipe(P2) after curing the concrete slab(C), and then installing at least one pipe(P1) at the inlet(32), and a step(S16) of installing at least one of a washstand(20) and a bathtub(10) at the pipe(P1). [Reference numerals] (A1) Connecting the layered drainage apparatus and a discharge standpipe using a drain pipe; (A2) Installing a pipe at an inlet of the layered drainage apparatus; (A3) Connecting a sewage pipe to a sewage standpipe; (B1) Installing a bathtub and a washstand in the pipe; (B2) Installing a wall-mount toilet in the sewage pipe; (S10) Installing a layered drainage apparatus in concrete slab; (S14) Installing a shelf-type wall; (S18) Installing a floor finishing material

Description

Layered drainage and construction methods

The present invention relates to a drainage device installed in an interior space of a shelf wall in a bathroom in a multi-family communal house, and more particularly, it is easy to connect to a floor, a bath, a basin, and the like, and prevents odors from rising. The present invention relates to a layered drainage and construction method that is easy to structure and minimizes interlayer noise.

In general, the toilets of apartment houses, such as apartments, have sewage standing pipes installed in pipe ducts through the concrete slab through the concrete slab, and drainage devices for draining sewage from toilets and bathtubs and trenches. It is configured to connect to sewage standing pipe.

Therefore, the noise due to the drainage of sewage and sewage is transmitted to the lower floor, thereby causing a problem of inter-layer noise.

In addition, since the drain pipe connected to the drainage outlet of the drainage device is embedded in the concrete slab, if a crack occurs due to the aging of the drainage pipe, leakage occurs in the concrete slab. A problem occurs.

In addition, when renovation is required, construction must be performed through the ceiling of the downstairs household, so there is an uncomfortable problem of repairing the downstairs household.

The present invention has been made in order to solve the above problems of the prior art, the sewage of the toilet is made of a layered pipe by installing the wall-mounted toilet, the drainage trap is discharged from the bottom to the top of the water to be drained living sewage of the main body Equipped inside, the drain trap is filled with a certain amount of water after drainage can prevent the odor discharged to the floor of the toilet, bathtub, washbasin, etc., the drain pipe connected to the outlet and the outlet of the main body on the top of the concrete (slab) The purpose is to provide a layered drainage system and a method for arranging and installed within a range that does not affect the function of the concrete structure, and easy maintenance in the floor.

The present invention for achieving the above object, the drain and outlet is formed on one side, at least one outlet is formed, the main body is installed between the concrete slab and the bottom finishing layer; and the foreign matter is installed in the drain And a trench for opening and closing the drain and the outlet; and a plurality of inlets are formed at an upper end thereof to be connected to one or more pipes of the drain and the tub of the tub and the tub of the wash basin. A drain trap installed at one or more inlets of the plurality of inlets and penetrating the outer surface of the main body; And a cover installed inside the main body to block the odor coming up from the outlet through the outlet. When water is introduced from the drain and the pipe, water is filled in the drain trap. The discharged water is discharged to the opening, and the discharged water is discharged through the discharge port by collecting water in the bottom of the main body, and a certain amount of water accumulates inside the drain trap so that the odor is discharged to at least one of the drain hole, the bathtub, and the wash basin. It is achieved by a layered drainage, characterized in that the prevention.

In addition, the main body,

The outlet may be formed in the middle portion of the body so that the outlet can be disposed above the concrete slab.

In addition, the drain trap,

The inlet may be inclined, penetrated into the middle portion of the outer surface of the main body, and the penetrated portion may be disposed on the upper portion of the concrete slab or may be partially embedded.

The apparatus may further include a support embedded in the concrete slab in a portion of the main body to firmly fix the main body to the concrete slab.

On the other hand, the present invention for achieving the above object, while installing the layered drainage in the concrete slab of the bathroom or toilet of a multi-storey building, before placing the layered drainage before placing the concrete slab and the layered drainage A drainage installation step of embedding a lower portion of the concrete slab; and, after the concrete slab is hardened, a drainage pipe step of connecting the granular discharge pipe installed in the multi-storey building and the outlet of the stratified drainage device by using a drainage pipe; and After the drainage device installation step, the inlet pipe step of installing one or more pipes in the inlet of the layered drainage device; And a basin and tub installation step of installing at least one of a wash basin and a tub in the pipe after the discharge piping step and the inflow piping step. It is also achieved by the layered drainage method comprising a.

In addition, the elbow insertion step of connecting the elbow to the inlet of the layered drainage device before the layered drainage device is embedded in the concrete slab.

In addition, the sewage pipe step of connecting the granular sewage pipe installed in the multi-storey building and the floor using a sewage pipe before the washbasin and the tub installation step; may further include.

Further, a shelf wall is formed to prevent the pipe, the drain pipe, and the sewage pipe from being exposed out before installing the wash basin and the bathtub, and to install a shelf wall on the wall of the bathroom or the toilet so that the ends of the pipe and the sewage pipe protrude. Steps may further include.

In addition, the toilet installation step of connecting the wall-type toilet bowl to the sewage pipe protruding to one surface of the vessel wall; may further include.

In addition, after the shelf wall forming step, to form a floor on the top of the concrete slab in order to form the floor of the bathroom or toilet; may further include a.

The present invention has the effect of blocking the odor discharged from the drain pipe by draining the water by flowing back from the bottom to the top, and after the water is accumulated in the drain trap.

In addition, although the foreign material is filtered out of the trench, the water discharged from the drain trap is deposited on the bottom of the main body and then discharged to settle the foreign matter mixed in the water to filter out once more.

In particular, by forming the position of the outlet at a certain height from the bottom of the main body, even if the outlet is not buried in the concrete slab or is buried for grading, at least a portion of the outlet is buried, the maintenance of the drain pipe connected to the outlet is installed in the floor finishing layer There is an easy advantage. In addition, since the location of the outlet is located above the concrete slab, there is an effect of minimizing the transmission of noise to the lower floor during drainage. Accordingly, since the pipe and the drain pipe can be formed in a layered structure, maintenance of the pipe and the drain pipe is easy.

In addition, by forming the inlet and outlet in each direction, it is easy to connect to the tub or washbasin, and there is an advantage that can be easily installed in the drainage pipe even after the concrete slab is formed.

1 is an exploded perspective view omitting the support in the layered drainage device according to an embodiment of the present invention.
2 is a perspective view of the combination of FIG.
Figure 3 is a front sectional view schematically showing a state in which the layered drainage device of the present invention is installed on the building floor.
Figure 4 is a side cross-sectional view schematically showing a state in which the layered drainage device of the present invention is installed on the building floor.
Figure 5 is a side cross-sectional view showing the process of draining in the layered drainage device according to an embodiment of the present invention.
Figure 6 is a perspective view of the trench and cover removed for cleaning the layered drainage of the present invention.
Figure 7 is a perspective view showing that the inlet is formed horizontally in the layered drainage device of the present invention.
8 and 9 are flowcharts showing the steps of the layered drainage method according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 to 6, the layered drainage device 100 according to the embodiment of the present invention is embedded in the concrete slab (C) and the shelf wall (zendai), the main body (1), the trench (2), A drain trap 3 and a cover 4. In addition, the support 6 and the stopper 7 may be further included. Here, the layered drainage device 100 of the present invention may be installed at the bottom (not shown) of the shower booth, the lower part of the wash basin 20, or the lower part of the bathtub 10.

The main body 1 includes a housing 11 and a cover 12.

The housing 11 has an outlet 112 having an uppermost opening and an upper one region of the front surface of the housing 11, and a lower portion of the front surface of the housing 11 protruding forward to form a drain 111. At this time, the drain 111 is formed by the bottom of the drain 111 is inclined so that the top is opened and water flows well. In addition, the housing 11 has discharge ports 113 formed at both sides and the rear surface of the housing 11 to discharge water introduced from the drain 111 and the drain trap 3 to be described later through the drain pipe P2. At this time, the outlet 113 may be formed at a height of about 30mm to 50mm from the bottom of the housing 11 so as not to be embedded in the bottom of the concrete slab (C). A description thereof will be described later.

The lid 12 is formed to correspond to the top opening of the housing 11 in the form of a substantially square plate, and is provided at the top opening of the housing 11. Accordingly, the cover 12 may block the upper opening of the housing 11, so that the cover 12 may block foreign matter from flowing in the upper portion of the housing 11. In this case, the cover 12 may be bonded to seal the housing 11.

The trench 2 is formed with a substantially rectangular horizontal plate 21 having a plurality of holes 23 and an extension portion 22 extending perpendicularly to one end of the horizontal plate 21. In the trench 2, the horizontal plate 21 is fitted into the drain port 111 of the housing 11, and the extension part 22 is fitted into the outlet port 112. Accordingly, as the water enters the plurality of holes 23, the foreign matter mixed in the water is filtered through the trench 2, and the filtered water moves to the drain trap 3, which will be described later, through the drain hole 111. In addition, the extension part 22 of the trench 2 opens and closes the outlet 112 of the housing 11, thereby preventing foreign matters from leaking through the outlet 112 and causing odors. A description thereof will be described later.

The drain trap 3 has a plurality of inlets 32 formed around the substantially cylindrical trap housing 33 and the trap housing 33. That is, the drain trap 3 has an inlet 32 connected to the trap housing 33 in the front and both directions around the trap housing 33 so that the upper end of the trap housing 33 is opened to form a discharge hole 31. ) Is formed and installed on the inner bottom of the housing (11). At this time, the inlet 32 formed in front of the trap housing 33 is connected to the drain 111 of the housing 11, the inlet 32 formed on both sides of the trap housing 33 is formed on both sides of the housing 11 It is installed to penetrate through the end of the inlet 32 is formed to be inclined so as to be disposed at a height of 30mm to 50mm from the bottom of the housing (11). In addition, the inlets 32 formed at both sides of the drain trap 3 are connected to the pipe P1 such as the tub 10 and the basin 20. At this time, in order to seal between the drain trap 3 and the housing 11, the drain trap 3 and the housing 11 may be integrally formed or bonded. Accordingly, the water flowing in the drain 111 is collected in the trap housing 33 through the inlet 32 formed in front of the trap housing 33, and flows in from the tub 10 and the basin 20. Water is collected in the trap housing 33 through the inlet 32 formed at both sides of the trap housing 33. A description thereof will be described later.

The cover 4 has a handle 42 formed at an upper end in the form of a substantially rectangular panel, and is mounted on the locking jaw 114 formed in the housing 11 to fit inside the housing 11. Here, the cover 4 may be provided with a packing 41 around the cover 4 to prevent odor from being discharged from the outlet 113 through the outlet 112. In addition, the packing 41 may be installed on the bottom surface of the cover 4 or the top surface of the locking step 114. Accordingly, by installing the cover 4 inside the housing 11, it is possible to further block the odor coming up from the outlet 113 to be discharged to the outlet 112.

The support 6 is substantially cylindrical, and a plurality of protrusions are formed on the outer surface, are installed on the bottom of the housing 11, and are embedded in the concrete slab C. In this case, the support 6 may be integrally formed with the housing 11. Accordingly, the layered drainage device 100 of the present invention can be more firmly fixed to the concrete slab (C). Here, the support 6 is already known and publicly implemented bar detailed description thereof will be omitted.

The stopper 7 is used to close the discharge port 113 and the inlet port 32 by inserting the discharge port 113 and the inlet port 32 which are not used in a cylindrical shape with one end open.

Hereinafter, the use state and the operation state of the layered drainage device 100 according to the embodiment of the present invention will be described in detail with reference to FIGS. 3 to 6.

In the present invention, the lower end portion of the housing 11 is embedded in the concrete slab (C). At this time, the inlet 32 and the outlet 113 penetrated to both sides of the housing 11 are not embedded in the concrete slab (C) is disposed above the concrete slab (C). And the back of the main body 1 is arrange | positioned inside the shelf wall 30. As shown in FIG.

After the concrete slab C is hardened, the drain pipe P2 is connected to the outlet 113 and the pipe P1 is connected to the inlet 32, and the bottom of the concrete slab C is finished with a bottom finishing layer E. Should be. Therefore, the rest of the portion except for the trench 2 is not exposed to the outside (see FIGS. 3 and 4).

Here, when water flows from the inlet 32 formed in front of the drain trap 3 and the inlet 32 formed at both sides of the drain trap 3 through the hole 23 of the trench 2, the trap housing 33 ) Is accumulated in the interior of the trapped water is discharged through the discharge hole 31 of the trap housing (33). That is, the accumulated water of the trap housing 33 overflows. The water discharged through the discharge hole 31 is accumulated at the bottom of the housing 11, and the discharged water is discharged through the drain pipe P2 through the discharge port 113 as the accumulated water is gradually filled up. At this time, after the drainage is completed, the inside of the trap housing 33 maintains the water filled up to the upper end. Therefore, the odor introduced through the discharge port 113 may be blocked by the drain pipe P2. That is, water is filled between the discharge hole 31 and the hole in the trench 2 so that odors are blocked by water accumulated in the trap housing 33, and water accumulated in the trap housing 33 is stored in the trench 2. It can block the odor is discharged to the hole 23 of the. In addition, since the cover 4 is fitted inside the housing 11 and the cover 4 blocks the odor from being discharged to the outlet 112, the odor can be completely prevented from being discharged (see FIG. 5).

In addition, the foreign material mixed with water in the trench 2 is first filtered out, and since the water discharged from the discharge hole 31 of the trap housing 33 accumulates at the bottom of the housing 11, the foreign matter mixed with water is stored in the housing 11. It can sink to the bottom of the) to filter foreign matter secondary. Therefore, since the water drained through the layered drainage device 100 of the present invention is drained in the second filtered state, it is possible to minimize the clogging of the drain pipe P2.

On the other hand, if foreign matters accumulate on the inner bottom of the housing 11, the foreign matters accumulated on the inner bottom of the housing 11 may be removed after lifting the trench 2 and removing the cover 4 through the outlet 112. (See Figure 6)

If the thickness of the bottom finishing layer E is already determined, if the outlet 113 is formed at the lower end of the housing 11, the outlet 113 may also be buried in the concrete slab C. This is because when the outlet 113 is embedded in the concrete slab C, the drain pipe P2 cannot be connected to the outlet 113, so that the concrete slab C is connected to the outlet 113 in advance. ), The drainage direction cannot be changed after it is buried. In addition, if water leakage occurs in the drainage pipe P2 due to the aging of the drainage pipe P2 while the drainage pipe P2 is embedded in the concrete slab C, it is difficult to locate the leak and to replace the drainage pipe P2. Troublesome work has to be done to crush the floor finishing layer (E) and the concrete slab (C). This also corresponds to the inlet 32 and the pipe (P1) provided in the inlet (32).

However, in the present invention, the inlet 32 and the outlet 113 are positioned at a height of about 30 mm to 50 mm from the bottom of the housing 11 so that the inlet 32 and the outlet 113 are not embedded in the concrete slab C. By forming, the direction of drainage can be freely changed even after the present invention is embedded in the concrete slab (C), and even when the pipe (P1) and the drain pipe (P2) are replaced, only the bottom finishing layer (E) is peeled off and the pipe (P1) and the drain pipe are (P2) can be replaced, so the replacement is very easy. In particular, since the sewage pipe P3 of the pipe P1, the drain pipe P2 and the toilet 40 can be formed in a layered structure, the maintenance of the pipe P1, the drain pipe P2 and the sewage pipe P3 is easy. Since the pipe P1, the drain pipe P2, and the sewage pipe P3 are disposed above the concrete slab C, it is possible to minimize the noise between the floors.

On the other hand, as shown in Figures 1 to 9 layered drainage method according to an embodiment of the present invention, drainage installation step (S10), discharge pipe step (S12), inlet pipe step (S12) and wash basin and bath installation Step S16 is included. Here, it may further include an elbow insertion step (S8), sewage pipe step (S12), ship wall forming step (S14), toilet seat installation step (S16) and floor finishing layer forming step (S18).

Drainage installation step (S10), the step of fixing the layered drainage device 100 to the concrete slab (C) by embedding the above-described layered drainage device 100 in the concrete slab (C) before the concrete slab (C) is solidified to be. As a result, the concrete slab C is hardened and the layered drainage device 100 is firmly fixed to the concrete slab C.

On the other hand, when the concrete slab (C) is formed in the multi-storey building, the granular discharge pipe (P5) and the granular sewage pipe (P4) is discharged and the sewage of each generation is discharged together. Here, the granular discharge pipe (P5) and the granular sewage pipe (P4) is already known and publicly performed bar detailed description thereof will be omitted.

The elbow insertion step S8 is a step of inserting the elbow L into the inlet 32 before the layered drainage device 100 is embedded in concrete. This is a step of inserting the elbow (L) in the inlet 32 when the inlet 32 of the layered drainage device 100 is not formed to be inclined and formed horizontally on the bottom of the layered drainage device 100, the inlet port 32 Only when) is formed horizontally. Therefore, when the inlet 32 uses the inclined layered drainage device 100, the elbow insertion step S8 may be omitted, thereby reducing the work step and reducing the work time.

In the discharge piping step (S12), after the concrete slab (C) is hardened and the layered drainage device (100) is firmly fixed to the concrete slab (C), the outlet of the layered drainage device (100) using the drainage pipe (P2) 113) and the granular discharge pipe (P5). Therefore, the drain pipe P2 is disposed above the concrete slab C, and since the drain pipe P2 is spaced apart from the concrete slab C by a predetermined distance, the noise generated in the drain pipe P2 can be prevented from being transferred to the lower floor. have.

Inlet piping step (S12), after the concrete slab (C) is hardened so that the layered drainage device 100 is firmly fixed to the concrete slab (C), using the pipe (P1) inlet ( 32). As a result, noise generated in the pipe P1 can be prevented from being transmitted to the lower floor.

Sewage pipe step (S12), after the concrete slab (C) is hardened so that the layered drainage device 100 is firmly fixed to the concrete slab (C), is a step of connecting the sewage pipe (P3) with the granular sewage pipe (P4). At this time, the sewage pipe (P3) is disposed above the concrete slab (C). Therefore, the noise generated in the sewage pipe P3 can be prevented from being transmitted to the lower floor.

The above-described discharge piping step (S12), inlet piping step (S12) and sewage piping step (S12) may be performed any step first regardless of the order.

Ship wall forming step (S14), after passing through the discharge pipe step (S12), inlet pipe step (S12) and sewage pipe step (S12), the pipe (P1), drain pipe (P2) and sewage pipe (P3) is exposed to the outside Step to install the shelf wall 30 on the wall of the bathroom or toilet. At this time, the ends of the pipe (P1) and the sewage pipe (P3) is projected to the outside through the shelf wall 30, the layered drainage 100 is the remaining portion of the wall 30 except the trench (2) Is inserted into. Accordingly, by arranging the pipe P1, the drain pipe P2, and the sewage pipe P3 inside the shelf wall 30, a clean aesthetics of a bathroom or a toilet can be formed. Here, since the shelf wall 30 is already openly performed, detailed description is abbreviate | omitted.

Wash basin and bath installation step (S16), after the shelf wall 30 is installed is a step of installing the wash basin 20 and the tub 10 at the end of the pipe (P1) protruding to the outer surface of the wall (30). Accordingly, the wash basin 20 and the tub 10 are connected to the layered drainage device 100 through a pipe P1, and the living sewage flowing from the washbasin 20 and the bath 10 is layered drainage device 100. It is discharged to the granular discharge pipe (P5) via the drain pipe (P2) through.

The toilet installation step (S16) is a step of installing the wall-type toilet 40 to the end of the sewage pipe (P3) protruding to the outer surface of the wall 30 after the shelf wall 30 is installed. Accordingly, the toilet 40 is connected to the stratified drainage device 100 through the sewage pipe P3, and the sewage flowing from the toilet 40 is passed through the sewage pipe P3 through the stratified drainage device 100 to the granular sewage pipe ( Discharged to P4).

Floor finishing layer forming step (S18), after performing all the above-described steps, the floor on the upper surface of the concrete slab (C) so that the living sewage falling on the floor of the bathroom or toilet flows into the hole 23 of the trench (2) Step of forming a floor finishing layer (E) by installing a finish. Accordingly, the living sewage falling to the floor of the bathroom or toilet flows into the hole 23 of the trench 2 through the upper surface of the bottom finishing layer E, and is discharged to the granular discharge pipe P5 through the drain pipe P2. .

Therefore, the present invention is easy to install the pipe (P1), drain pipe (P2) and sewage pipe (P3), the pipe (P1), drain pipe (P2) and sewage pipe (P3) is disposed on the upper portion of the concrete slab (C) , Easy to replace and repair. That is, to repair or replace the pipe P1, the drain pipe P2, and the sewage pipe P3, it is not necessary to tear off the bottom finishing layer E, and only the shelf wall 30 is to be removed, so that the pipe P1, Repair or replacement of the drain pipe (P2) and sewage pipe (P3) is very simple. In addition, it is possible to prevent the noise generated from the pipe P1, the drain pipe P2, and the sewage pipe P3 from being transmitted to the lower floor. In addition, by reducing the construction step, the working time can be shortened and the construction is very simple.

In describing the present invention described above, even if the embodiment is different, the same reference numerals are used for the same configuration, and the description may be omitted as necessary.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. Shall not be construed as being understood. Therefore, a person having ordinary knowledge in the technical field to which the present invention pertains may easily implement other forms of the present invention within the same scope as the above-described embodiments, or the present invention only by the description of the embodiments of the present invention. It will be possible to practice the invention in the same and equal range.

100; Stratified drainage
One; main body
11; housing
111; waterspout
112; Outlet
113; outlet
114; Jaw
12; cover
2; Trench
21; Horizontal Plate
22; Extension portion
23; hole
3; Drain trap
31; Discharge hole
32; Inlet
33; Trap Housing
4; cover
41; packing
42; handle
6; support fixture
7; stopper
10; tub
20; washbasin
30; Shelf
40; toilet
C; Concrete slab
E; Floor finishing layer
L; elbow
P1; pipe
P2; drain
P3; Sewage pipe
P4; Granular sewage pipe
P5; Winning discharge pipe

Claims (9)

A main body disposed between one side of the drain slab and the outlet, one or more outlets formed around the concrete slab, and the bottom finishing layer;
A trench installed in the drainage port to filter foreign matter and opening and closing the drainage port and the outlet;
A plurality of inlets are formed to be open at an upper end thereof and connected to at least one of the drain pipe, the tubing of the tub, and the tubing of the wash basin, and are installed in the main body, and at least one inlet of the plurality of inlets may be disposed on the outer surface of the main body. A drain trap installed through; And
And a cover installed inside the main body to block the odor coming up from the outlet through the outlet.
When water flows from the drain and the pipe, the water rises inside the drain trap and is discharged to the opening, and the discharged water is discharged through the outlet by collecting the bottom of the main body and a predetermined amount of water in the drain trap. Layered drainage, characterized in that to prevent the odor is discharged to at least one of the sump, the tub and the wash basin.
The method of claim 1,
The main body includes:
The outlet is formed in the middle portion of the body layered drainage, characterized in that the outlet is disposed or partially buried in the upper portion of the concrete slab.
The method of claim 1,
The drain trap,
The inlet is inclined, the layered drainage, characterized in that penetrating through the middle portion of the outer surface of the body is disposed on the upper portion of the concrete slab.
The layered drainage device according to claim 1 is installed in a concrete slab of a bathroom or a bathroom of a multi-storey building, and the lower portion of the layered drainage device is embedded in the concrete slab after the layered drainage device is disposed before the concrete slab is placed. Drainage installation step;
A discharge piping step of connecting the granular discharge pipe installed in the multi-storey building and the outlet of the layered drainage device by using the drainage pipe after the concrete slab is hardened;
An inflow piping step of installing one or more pipes in the inlet of the stratified drainage system after the drainage device installation step; And
After the discharge pipe step and the inlet pipe step, wash basin and tub installation step of installing at least one of the wash basin and the tub in the pipe; layered drainage method comprising a.
The method of claim 4, wherein
The elbow insertion step of connecting the elbow to the inlet of the layered drainage device before the layered drainage device is embedded in the concrete slab.
The method of claim 4, wherein
Layered drainage method further comprising a; sewage pipe step of connecting with the granular sewage pipe installed in the multi-storey building by using the sewage pipe before the wash basin and tub installation step.
The method of claim 4, wherein
It further comprises a shelf wall forming step of installing the shelf wall on the wall of the bathroom or the toilet to prevent the pipe and the drain pipe is exposed out before the washbasin and the tub installation step to protrude the end of the pipe; Characterized stratified drainage method.
The method of claim 7, wherein
The toilet layer installation method further comprising; toilet seat installation step of connecting the wall-mounted toilet bowl to the pipe protruding to one surface of the shelf wall.
The method of claim 7, wherein
And a floor finishing layer forming step of forming a floor on top of the concrete slab to form a floor of the bathroom or toilet after the shelf wall forming step.

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