radon fan replacement 4

https://localradonmitigationcrewsfacts.talesignal.com/posts/when-to-call-local-radon-mitigation-crews-for-your-home

Hooking up a new radon fan is one of those jobs you hope you never have to do, but when the old one starts making that high-pitched whine, you know it's time. I had to pull the old unit out from the crawlspace, and the dust was unreal. The new one spins quieter and should help keep those radon levels down, which is the whole point. Just make sure you seal every joint tight so you don't lose any suction.