Passive to Active Radon System
by Robert R
I recently upgraded from a Passive to an Active Radon System, leveraging my Sump Cover, that was previously installed when the house was built in 1995. I purchased a NEW solid sump cover from Home Depot, that is built in two parts - to allow a good seal with the basement floor and piping. I installed a Radon Away RP145 fan in the attic. Previously my radon levels reached 2.0, and now averaging 0.9 - so not bad, but I thought is would be much lower. Looking at my manometer, it is showing a suction of 0.3. My question, should my suction be higher than 0.3 OR is that common with use of the Sump for radon mitigation?