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Old 12-01-2011, 07:12 PM   #1
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Check valve for column sump pump


About to replace my submersible sump with a column sump pump. Just wondering where i should place the check valve for column sump pump? Ok to have it screwed directly into the sump outlet, or have it up a few feet in the discharge pipe?

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Old 12-01-2011, 07:42 PM   #2
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Check valve for column sump pump


I never use a screw in ones I use the ones that just slip over PVC pipe and have a hose clamp on them. That way I can disconnect it and remove the pump if needed.
It can be any place past the outlet for the pump.

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Old 03-13-2012, 04:40 PM   #3
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Check valve for column sump pump


I just installed a 1/3 horse column pump and after it runs I get the dreaded loud clunking sound.

Right now I have the screw in check valve screwed directly into the pump..should I place the check valve higher up? I have vertical pipe going approximately 10 feet, then out the wall.

Should I put it at the highest point I can reach? (so I can replace easily if need be)
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Old 03-13-2012, 06:57 PM   #4
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Check valve for column sump pump


The noise you hear may be the start up and stopping torque of the pipe itself.
How is the pump secured?
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Old 03-13-2012, 08:15 PM   #5
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Check valve for column sump pump


Pump is sitting in pit, connected with abs pipe. If i went to the bendy soft pipe, would that help?
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Old 03-13-2012, 08:33 PM   #6
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Check valve for column sump pump


It didnt make the clunking sound when the submersible pump was in.. Only when i swaped thst out with pedestal pump.

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