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Thread: sewer pump noise
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06-13-2012, 04:16 PM #1
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sewer pump noise
New construction bathroom sewer pump sounds fine and quiet while operating, but after pump shuts down, it starts making a noise like an out-of-balance washing machine for about 15-20 seconds. The pipes shake while this is going on, too.
Anyone know what would cause this?
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"There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
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06-13-2012, 04:28 PM #2
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Re: sewer pump noise
John, Thats the water washing back down the pipe and smashing on to the backflow preventer.
Wait till the hard stuff gets in there
They never support the pipes well and they shake like there's an earthquake.
I always write it up as requireing proper support.
We don't want those connections breaking loose.
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06-14-2012, 10:23 AM #3
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Re: sewer pump noise
Wayne - Thanks! I don't see many of these, and ones I have seen didn't make this noise.
"There is no exception to the rule that every rule has an exception." -James Thurber, writer and cartoonist (1894-1961)
www.ArnoldHomeInspections.com
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