Is the first floor launched independently?

The first floor is launched independently, because usually the drainage pipes on the first floor of high-rise buildings are designed separately. Because the floor is too high, the lower the pressure, and the greater the pressure on the first floor, the blockage will occur, and the separated design can effectively prevent the drainage of the riser from flowing backwards. Note that the sewer riser cannot be directly connected to the ground with a 90-degree elbow after reaching below the first floor, but must be connected with two 45-degree elbows to avoid blockage at the intersection of two horizontal pipes.

What is the cause of sewer blockage?

1. Hair causes sewer blockage: After the sewer is used for a period of time, the hair that is usually bathed will hang on the pipe wall, and excessive accumulation will cause blockage. Hair will generally cause toilet floor drain blockage, washbasin blockage, bathtub blockage and shower room blockage. Therefore, when you use it at ordinary times, you must cover the floor drain cover and other protective facilities. If you have hair, you can pick it up and throw it in the trash can.

2. Grease blockage: Sewer grease blockage generally occurs in the kitchen. This kind of blockage is generally caused by scaling on the inner wall of the pipeline. After the pipeline is seriously fouled, the sewer is not smooth. Slightly, it can be dredged by dredger. If it is serious. Simple dredging methods can't solve it. After dredging, it is blocked, blocked and blocked, which is a vicious circle. If you want to solve it completely, you can only use a high-pressure waterwheel to clean the inner wall of the pipeline or replace the pipeline. Relatively speaking, it is more economical to dredge with a high-pressure sweeper.

3. Pipeline collapse and pipeline dislocation: This kind of blockage generally occurs in the ground floor and outdoor sewers. There is no good solution: as long as we find the exact position of landslide dislocation, dig and replace the pipeline, the best tool is to use pipeline TV (pipeline detector) to make accurate judgment.