Question:I have a customer who wants to put a check valve after the tank, inside the pump chamber to prevent basement flooding in the event of high water table and pump failure. I can get one, but it is so big (designed to have pipe at either end and measures at least 9 inches) I will have trouble putting in a pump. Does anyone know of a narrow check valve designed to go in that location that won’t take up half the space? Ideally it would be a flapper with only one socket for a glue joint. Answers: They are
