What is the main cause of water seepage into the sanitary sewer system?

Water seepage into the sanitary sewer system is primarily caused by poor construction at piping joints. When joints between pipes are not properly sealed or constructed, it creates gaps that allow groundwater or surface water to infiltrate the sewer line. This infiltration can lead to an overload of the system, making it difficult to manage wastewater effectively.

Proper construction techniques are essential to ensure that joints and connections between pipes are watertight, preventing any unintended entry of water. When these joints are compromised, it not only causes unnecessary strain on the sewage treatment system but also increases the potential for overflow and associated environmental issues.

While other factors like excessive rainwater might contribute to water levels in the sewer system, it is fundamentally the quality of the construction and the integrity of the piping that directly facilitate seepage. Inadequate solid waste management and faulty sewage treatment procedures are also important aspects to consider in wastewater management but are not the primary reasons for water seepage into the sanitary sewer.