Sewage Backups Happen
Sewer systems are typically gravity based and flow through a main trunk line. When a sudden heavy rainstorm overloads the main sewer system sewers can backup into homes and business.
How a Backwater Valve helps protect you from Flooding
A mainline backwater valve can help prevent sewage in an overloaded main sewer line from backing up into your basement. Placed directly into the sewer lateral in your basement, the valve automatically closes if sewage backs up from the main sewer line.