Fantastic source of information, advice, and materials!
Thanks so much Val for this site! My radon level went from 14 piCu/L to less than 0.5 ("undetectable")
You provided all the information I needed to install a radon abatement system myself. Your pictures, descriptions and checklists were very helpful. It was nice to be able to order everything from one location. The only difficult part was routing and assembling the ducting - which I ran from my utility room into the garage and then out through the attic.