What is the reason for the backflow of sewers in residential areas?

Downflow of sewage in residential areas means that sewage in sewage pipes flows backwards into residents' indoor pipes, which destroys residents' living environment and sanitary conditions. The following analyzes the reasons for sewage backflow in residential areas from several aspects:

1. Improper construction: During the construction of residential buildings, construction workers may ignore the construction specifications of sewers and fail to properly install sewer equipment as required, resulting in leakage or damage of sewer equipment and sewage backflow.

2. The pipeline was not dredged in time: a lot of dirt and garbage accumulated in the sewer. If it is not cleaned in time, the pipeline will be blocked, and the water in the sewer will not be completely discharged, which will often cause the sewer to flow backwards.

3. The rainwater pipe and sewage pipe are connected reversely: During the planning or acceptance of residential facilities, the rainwater pipe and sewage pipe may be connected reversely. For example, if the rainwater pipe is not connected correctly, rainwater may enter the sewage pipe, causing backward flow.

4. Improper terrain design: the terrain where the community is located is low and flat. In case of heavy rain, the sewer equipment in the community will bear excessive discharge pressure. At this time, the risk of sewer backflow will increase.

The above points are some common reasons for sewage backflow in residential areas. Residential property and owners should strictly follow the specifications, regularly clean pipelines, check equipment, and promptly deal with loopholes in topographic design and architectural planning to ensure the life, health and safety of every owner.