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Old 10-01-2010, 09:04 AM   #1
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Noisy sump pump check valve


Had my sump pump replaced about 9 months ago. It works fine except that the check valve is annoyingly loud. The former pump that came with this house (6 years old) had a brass check valve that we could hear but was much less noisy than the plastic one the plumber installed. Is there a best solution to the noise? I have seen ads for a valve called the "silencer", has anyone tried this product?

I apologize if I am reawakening a thread from the past.

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Old 10-01-2010, 09:11 AM   #2
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Noisy sump pump check valve


there is a silent swing check on the market. it has a second flap inside that hinges from the middle, eliminates the bang. Once I get some coffee in me i'll find you a link, or you can google silent swing check to see it

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Old 10-01-2010, 09:21 AM   #3
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Noisy sump pump check valve


Often, you can substantially reduce the "bang" when the valve closes by installing it in a horizontal position (you add elbows and a short length of horizontal pipe), check the manufacturer's installation instructions, most can be installed this way.

As an alternative, there are quieter (but not truly "silent") valves, for example GOOGLE "Silent Sewage Check Valve".
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