yes tested after and results were under 1.0..
funny thing about all the haters in here, is that our seller tried to have a neighbor plumber do it with 3" pipe and the level still tested over 20 from in the 40's. So since the sellers tried to cheap out they wasted money because they ended up paying for it to be redone.
secondly if anyone in here reads the epa rules.. a radon mitigation system can only be installed by a licensed mitigation system installer because they're then held liable for results, now and in 5 years
Heres a video on how it should be done for you "shove a 3" pipe in it people"