Among my frequently asked questions: “What can be done to protect a system against flooding?” And: “If the system has been flooded, what needs to be done before it can be used again?”Before addressing some of the specifics regarding these questions, let’s take a step back and look at why we worry about systems flooding, and what kind of situations and locations create flooding problems.There are several primary reasons to worry about flooding:The house is connected to the system by piping that under some flood events can carry sewage from the tanks in the system back into the house. This














