What about the backwater from the sewer? On the first floor, how can we save trouble and money?

First of all, we must determine where the nearest sewage well is, usually on the north and south sides. Some multi-family houses have different locations. Never connect the rain well. Property or municipal drainage will be fined.

Then locate the sewer pipe in your bathroom or kitchen to see if there is a basement, public area or soil layer directly below your bathroom. As shown in the above figure, the kitchen pipe is changed into an independent pipe, and after it comes out, it enters the soil layer along the wall and finally extends to the sewage well.

This situation is easy to change, but the bathroom design of some buildings is close to the middle of the building and can be changed. However, before construction, it is necessary to contact the property or other owners to win the consent of others. Change the law:

This depends on whether it is the change above the floor or the change below the floor, but generally the change below the floor is mostly. Disconnect the main pipe from your branch pipe, block the main pipe side with pvc cover, and the pipeline will be constructed as designed.

Also note that if the pipeline is in a cool place, it is best to tilt to the sewage well when installing, otherwise it may freeze in winter.

Extended data:

The reason why the sewer on the first floor is upward:

1, sewer pipe material

Many houses are decorated with old-fashioned desert cast iron pipes. The inner wall of the pipe made of this material is very rough, and it is easy to accumulate dirt and garbage because of the aging and rust of the pipe wall, which leads to the narrowing of the inner diameter of the pipe until it is blocked.

2. Positive pressure water column

Under normal circumstances, the sewer drainage of high-rise residential buildings only flows down automatically by gravity, which basically enters the drainage riser first, then the horizontal drainage pipe and finally the drainage shaft;

Therefore, when sewage flows from the vertical pipe to the horizontal pipe, there will be water flow blockage and short-term positive pressure water column. At this time, if the vertical pipe and horizontal pipe are improperly installed, the positive pressure water column will be too high. Once it is higher than the pool, sewage will overflow from these pipes, which is the so-called reverse water situation.

3. Housing placement

Because the weight of the house itself is not enough, and the decoration construction is not paid attention to, the settlement of the house will be too high, and then the drainage pipe will be squeezed, which will slow down the drainage speed and make the drainage poor until the slope falls, thus the problem of anti-water will appear.

4. The floor is very special

Under normal circumstances, if there is no independent sewer on the first floor, there will often be a situation of anti-water on the first floor. This is mainly because the entire residential building uses sewers, and the first floor is located at the bottom of the pipeline. There is not enough water pressure to discharge the sewage. The more you accumulate, the more water will flow.