Does sealed sump pump pit need venting?

Old 09-26-11, 10:46 AM
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Does sealed sump pump pit need venting?

A radon mitigation system was installed in the corner of my basement about 15 feet from my sump pump pit. The installers also sealed my sump pump pit to prevent the mitigation system from sucking air from inside my home instead of radon from the foundation. We just had a lot of rain, and I noticed that my sump pump is running a lot more than usual. It turns on every 15-20 seconds and runs for about 5 seconds each time, and it seems to me that the sump pump is struggling. Will the sealed system cause the pump to work harder? Is this bad? Is there any way of venting this sealed system without affecting the radon mitigation?
Old 09-26-11, 04:17 PM
Join Date: Oct 2006
Location: Southeast Wisconsin
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What type of pump do you have? Does it have a pressure switch? Seems like alot of the radon systems around here have the vent pipe for the radon system in the sump cover. if your sump cover has a cord grommet in it, try taking it out and see if the pumping problem improves by allowing some air in.

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