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mrdrew

05:46PM | 09/11/17
Member Since: 09/11/17
1 lifetime posts
Bvbasement
I've got a vent pipe that ends about a inch below the lowest corner in my unfinished basement. It vents up and out the roof with no cap or anything. I don't see any fan or anything on it. I could install a Home Depot radon fan for $170 (http://www.homedepot.com/p/Suncourt-Radon-Mitigation-Fan-Kit-4-in-Fan-with-4-in-to-4-in-Couplers-and-Air-Pressure-Indicator-RDK04/202698146), but is it even necessary? Or perhaps the air blowing over the top of the vent will be enough to venturi some flow out of my basement. Perhaps I should get a test kit to see if it's necessary. If that's the case, I'd like to test during a peak radon time, would that be a season of the year, or during/after heavy rains?

BV014687

10:25AM | 09/13/17
It's best to test in closed home conditions with a short term charcoal test kit. This time of year is fine for testing.

It sounds like you have a passive radon system, which vents gas from beneath your foundation. If you have high radon levels, adding a fan will "activate" the system and will usually bring levels down significantly. Check out https://www.radonpds.com/be-radon-ready/ for information on these types of systems. Our company supplies contractors all over the US which build these. We have low-voltage fans available for DIY-ers as well.

The only way to know for sure if your system is installed or working properly is to contact a local certified mitigator. Check out AARST (http://aarst-nrpp.com/wp/) for mitigators near you.

--Brent, PDS
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