About this document
Backwater Valve Installation Guide by joradu is a document available to read on EtoBox.
A backwater valve is a one-way valve installed on a building sewer to prevent sewage from backing up into the building from an obstructed public sewer. It is required for buildings where any plumbing fixtures are located on a floor below the level of the next upstream manhole cover of the public sewer system. The backwater valve automatically shuts to prevent sewage backflow during heavy rains or sewer obstructions. Proper installation and maintenance of backwater valves is important to prevent flooding fro
- Author
- joradu
- Language
- EN