What is the reason for the street sewer spraying water?

Street sewer splash is usually caused by broken or blocked pipes, excessive sewage pressure and rising water level due to weather changes. These reasons will be described in detail below.

1. Broken or blocked pipeline

The sewer pipes are washed and corroded by sewage for a long time, which is easy to break or damage. At this time, the sewage in the pipeline will leak out, causing water spraying on the street.

In addition, the pipeline may be invaded by a large number of debris, such as garbage, sand, leaves and so on. , causing pipeline blockage. Once blocked, sewage can't be discharged, and the internal pressure gradually increases, which eventually leads to pipeline rupture, and pollutants such as viruses and bacteria may flow back, affecting residents' health.

2. The sewage pressure is too high

After sewage enters the sewer, it needs to bear pressure from all sides. Once the sewage pressure in some areas is too high, the pressure inside the sewer will increase. When the internal pressure reaches a certain level, it will make the sewer unable to contain more sewage, and the sewage will be sprayed out through the lower drainage outlet.

3. Water level rise caused by weather change

Rainy weather is a test for sewers, especially heavy rain or rainstorm. Sewers may bear more than ten times more sewage than usual, and the internal pressure and water level will rise accordingly. If the flow rate of the drainage system is not well designed, or the drainage pipeline is blocked, it may cause water spraying on the street.

To sum up, the main causes of street sewer splashing are pipeline blockage, pipeline rupture, excessive sewage pressure and weather change. In order to avoid this situation, we need to do a good job in the maintenance and management of sewers, ensure the smooth flow of pipelines, and avoid excessive water level or pressure, thus effectively protecting people's living environment and health.