Waterproof problem of toilet sewer blockage

1, if it is found that the kitchen sewer pipe starts to gush out when cooking, it is generally a problem that the kitchen sewer pipe runs backwards, especially on the second floor of a small high-rise building. If it is not handled in time, it may be "difficult to move" at home.

2, the kitchen sewer water, usually caused by sewer blockage, but the kitchen sewer blockage is also divided into two situations:

The kitchen sewer is blocked by its own pipe when it is used by itself, so it can be dredged with a small dredge.

If there is no water to pour, the main pipe of the whole building will be blocked, and the kitchen sewer pipe will be easily stained with oil. It may be necessary to hire a professional master to clean the pipeline, which is more thorough.

Generally speaking, the kitchen sewer on the second floor is the easiest to pour water. This is because if there is a blockage below the main sewage pipe, once the sewage is not discharged smoothly, the sewage will flow backwards to the nearest water outlet. The first floor is an independent sewer, and the water on the first floor is low or even no pressure. Please only clear the pipeline company.

4. In addition to the above reasons, hydraulic conditions and pipes used for sewer pipes will also affect the drainage of kitchen sewers:

Residential drainage is generally gravity drainage, and the drainage speed of drainage riser is higher than that of horizontal drainage main pipe. When the sewage is discharged to the bottom of the drainage riser and transferred to the horizontal drainage main pipe, the drainage speed will slow down, especially when the water volume is large, which may cause instantaneous blockage. ?

Sewage forms a short section of positive pressure water column at the bottom of drainage riser. If the hydraulic conditions in this part are not good, the positive pressure water column will be higher. When the positive pressure water column is higher than the kitchen utensils and appliances of the ground floor residence, the sewage will overflow from the kitchen utensils and appliances of the ground floor residence, which is the situation that the sewer is against the water. This is usually caused by unreasonable drainage design.

The inner wall of the pipeline will also affect the drainage quality. For example, in the past, the drainage pipes of houses usually used sand cast iron pipes. The inner wall of this kind of pipeline is rough, which is easy to cause dirt "retention". Poor anticorrosion will eventually lead to rust and poor drainage of pipelines.

5. If the waterproof problem of the ground floor residence is very serious because of the pipeline problem, then the original drainage pipe should be reformed and replaced with a pipeline with smooth inner wall and not easy to get dirty. Plastic drain pipe or machine-made centrifugal cast iron pipe are two commonly used now.