Q: My basement's sump pump is so noisy that I have to move into the guest room to sleep during periods 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. When it starts up, I hear hmmmm, then HMMMMMMM, and then a bang (when the valve shuts down).
The noise is audible throughout the house but is worse on the side where my master bedroom is because the pipe runs through its wall on the way to the bathroom. more...