Re: Sewage ejection pump
Posted by hj on April 18, 19100 at 02:20:36:
In response to Re: Sewage ejection pump
Get the ejector pump check valve which has a rubber flap. It may still bang, but it should be a lot less. The hole in the pipe is to avoid air lock not to get rid of the bang.

: I installed a sewage ejection pump system in my basement to move waste water from a baseroom up about 8 ft to the main drain. When the pump is done, there is a loud banging noise and kickback on the drain. I did install the a check valve and per the instructions on the pump, I drilled a 1/4 inch whole in the drain pipe just above the pump. What can I do to end the nosie?




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