radon fan replacement 3
https://getradonteststlouisspark.oakmontscope.com/posts/why-a-radon-test-st-louis-homeowners-should-take-seriously
Replacing the radon fan in our mitigation system turned out to be more straightforward than I expected, though getting the old one out of the crawlspace was a real chore. The new fan is quieter and seems to move air more efficiently, and the monitoring system shows the radon levels dropping nicely.