radon system installation 5

https://atomic-wiki.win/index.php/When_and_Why_You_Need_a_Radon_Fan_Replacement

When we installed our radon mitigation system, the crew first sealed cracks in the basement floor and walls, then ran a pipe from the soil under the slab up to a vent fan that exhausts above the roofline. The whole process took two days and included a post-installation radon test that confirmed the levels dropped from 8.5 pCi/L to 0.9 pCi/L. It's been running quietly ever since.