Soil Suction system
This method creates a negative suction below the basement slab using a radon mitigation fan and 3" or 4" PVC plumbing. The gas is pulled to the suction point and discharged safely above the roof line.
Radon Sump system
A radon sump system attaches to an existing sump pump and drain tile system. Since the packed soil around the perimeter has been replaced with river rock and a 4 inch drain pipe, the fan can easily attract gasses from the entire basement. In a sump system, only one suction point is needed.