Prior to the flood
If a septic system is located in a flood-prone area, a plumber should install a backflow preventer on the building sewer so sewage cannot back up into the home during a flood. A backflow preventer is recommended, as a simple check valve may not close properly and sewage may back up into the home. Also, make sure all inspection caps are in place. Threaded caps can be installed and the pipes can be cut flush with the ground.Immediately prior
If you know a flood is coming and the building sewer has a backflow preventer, nothing further needs to
