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Question DetailsAsked on 7/8/2015

why would there be a sump pump under a house with a crawlspace?

wanting to buy a house and we are not in a floodplain or anything but there is a sump pump in the crarlspace.

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Must have been a water problem at one time - due to seasonally high or flooding-caused high groundwater table, intrusion from surface flooding, or maybe from roof runoff that may have since been corrected by properly installed and drained downspouts or protective berming or french drains or such that eliminated the original problem.

In any of the above cases, it would have been necessary to prevent prolonged wet ground which could have caused mildew/mold issues and acted to attract (damp ground) insects.


Could also be you are in a zoning area that requires sump pumps in all structures built in that area, and you happen to be high enough it is not needed at your house. Check with local building department to see if there is such a provision in your area.

Answered 4 years ago by LCD




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