The main pipeline on the second floor of high-rise buildings is often blocked. How to prevent the sewer from flowing backwards?

Check more, install drainage check valve, and change to independent drainage.

Prevent water blockage:

The first point is that all residents in the building need the same maintenance. Only when we use the sewer pipe, we don't throw things around or pour oil into it, so that the sewer pipe will not be blocked. Therefore, in order to prevent the sewer pipe from being blocked, it is necessary for the residents of the whole building to maintain it together, not just one.

The second point is to dredge and inspect outdoor sewage inspection wells regularly. Because all sewer jams start from the horizontal trunk of outdoor drainage pipeline, it is necessary to check the drainage situation of the horizontal trunk regularly. If the drainage blockage is found, dredge it immediately, which can prevent the blockage of the sewer pipe from rising to a certain extent.

Extended data:

Solution of sewer backflow on the second floor;

1, foreign body sealing liquid. In daily use, foreign objects are accidentally dropped or newly installed pipes are blocked by mistake. Pipe dredgers are generally used to directly dredge or replace pipes.

2, the solution to the problem of dirt blockage. Scaling often occurs in some sewer pipes after short-term use, which narrows the inner diameter of the pipes and has a negative impact on normal sewer waste gas. This kind of dredging must use high-pressure water to clean the pipeline, clean the dirt on the inner wall of the pipeline, and continuously expand the inner diameter of the sewer pipe, thus dredging the sewer. This situation is the most commonly used in kitchen sewers.

3. The solution to the problem is bad hydraulic conditions. First of all, all unfavorable factors should be considered in residential design, and the layout of drainage pipes should meet the best hydraulic conditions. Therefore, special attention should be paid to the connection between the drainage riser and the horizontal irrigation main pipe, and two 90 elbows with an inclined radius of 45 or not less than 4 times the pipe diameter should be adopted.

Irrigation horizontal pipes should be connected in a straight line as far as possible, with few turns. The diameter and slope of the main irrigation pipe must be increased.