Noisy check valve
Posted by Jim Sansone on June 02, 2004 at 21:10:04:
Just installed an ejector pump. (2" discharge into 4" sewer line) I have approximately 7 feet of lift, then 2 feet horizontally to the sewer line.
I installed a check valve in the horizontal section, as I was told NOT to install it vertically because solids may prevent it from opening.
When the pump stops, check closes with a thud and rattles the pipes, also any water remaining in the pipes drains back into the pit.
1) Is there a quieter valve out there, and 2) any other options to prevent backflow into the pit?


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