Basement sumps...how do they work?

[David P. Valley]

Originally Posted by mlarson

Pretty common around here. Are the rules different out your way?

I'm not sure about the exact mitigation installation regulations in Massachusetts, but I have never seen a sump pit utilized for a Radon mitigation. I don't see a problem with utilizing a sump pit as it saves time in coring the floor.

Every last radon system that I've seen in Massachusetts always penetrates the floor through a cored hole.
http://www.masscertifiedhomeinspections.com/?D=117

[Joe Funderburk, CMI]

The EPA states: "One variation of subslab and drain tile suction is sump hole suction. Often, when a house with a basement has a sump pump to remove unwanted water, the sump can be capped so that it can continue to drain water and serve as the location for a radon suction pipe."

http://www.epa.gov/radon/pubs/consgu...#reductiontech