Q: My basement's sump pump is ... of heavy rain. The pump has a vertical pipe connecting it to the main outtake pipe leading to the sewer. There is a brass check valve in the connector.

Waste lines from a sewage ejector or sump pump use a check valve to stop wastewater from flowing back into the basin. When these valves shut, they can make a thud loud enough to be heard ...

If your check valve isn’t doing its job, your pump becomes Sisyphus, pumping the same water out of the bucket over and over again. One clue you can look for is to study the sump bucket liner as ...