How to clean drain pipes

Abstract

To improve the flexibility of emergency repairs when blockages occur inside drainpipes. [Solution] The drain pipe cleaning method is a method for cleaning a drain pipe in a siphon drainage system 10 having an L-shaped piping member 26 (appliance drain pipe) connected to a plumbing fixture 20 as a drain pipe 44 and a horizontal pipe 46 connected downstream of the L-shaped piping member 26, and comprises a first step S1 of closing the horizontal pipe 46 at a position downstream of the L-shaped piping member 26, a second step S2 of accumulating water 104 (fluid) upstream of the closing position of the horizontal pipe 46, and a third step S3 of moving the water 104 back and forth in the drain pipe.

Claims

1. A method for cleaning drainage pipes in a siphon drainage system having a fixture drainage pipe connected to plumbing fixtures and a horizontal pipe connected downstream of the fixture drainage pipe, The first step is to block the horizontal pipe at a position downstream of the aforementioned equipment drain pipe, A second step involves accumulating fluid upstream of the closure point of the aforementioned horizontal pipe, A third step involves causing the fluid to reciprocate within the drain pipe, A method for cleaning drain pipes having [a certain feature].

2. The cleaning method according to claim 1, wherein the third step involves applying pressure to the fluid from the downstream side.

3. A method for cleaning a drain pipe according to claim 1, further comprising a fourth step of releasing the blockage of the horizontal pipe and allowing the fluid to flow downstream.

4. In the first step described above, the horizontal pipe is closed in the common area of ​​the apartment building. The third step is to reciprocate the fluid in the shared portion, a method for cleaning a drain pipe according to any one of claims 1 to 3.

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