Another type of flood control system is called an overhead sewer. The overhead sewer system diverts sewage from plumbing fixtures on the first and higher floors to a new sewer line running above the basement floor, typically along the basement ceiling which is overhead.
This plumbing design changes the house’s original drainage system. Please see the diagram below. The original lowest drain (usually the basement floor drain) is raised to a higher level (usually first floor bathtub drain). Outside, the original house sewer line’s connection to the city or village sewer main is closed off, and a sewer clean-out is installed for rodding purposes.This keeps the basement dry from municipal sewer backup. The overhead sewer system is often referred to as the most reliable flood control system of the types available. However, it is sometimes difficult to install cost effectively in all homes. The overhead sewer system is custom-built for each home it is installed in. In addition, this system is an excellent system to install when the basement walls are unfinished.
