Rückstauereignisse

Rückstauereignisse, often translated as backwater events or backflow occurrences, refer to a situation where water or sewage flows in the reverse direction of its intended path within a drainage system. This phenomenon typically arises when the pressure in the public sewer system exceeds the pressure within a private building's drainage network. The primary cause is usually an overload of the public sewer, often due to heavy rainfall overwhelming its capacity, or a blockage within the sewer line.

When a Rückstauereignis occurs, wastewater from the public sewer can be forced back through connected pipes into buildings. This can lead to significant damage, including flooding of basements, lower floors, and plumbing fixtures. The intrusion of sewage not only causes structural damage and costly repairs but also poses serious health risks due to contamination.

To prevent or mitigate Rückstauereignisse, preventative measures are crucial. The most effective solution is the installation of backwater valves or backwater check valves in the building's drainage system. These devices are designed to automatically close when backflow is detected, preventing sewage from entering the building. Regular maintenance and inspection of both the private drainage system and the public sewer infrastructure are also important to identify and address potential causes of blockages or capacity issues. Property owners are often responsible for installing and maintaining backwater protection within their own premises.