This is an example of a multiple extraction point system with an exterior aesthetic package. We have one extraction point in the basement and the others in each of the two crawlspaces. This id creating negative pressure under the basement slab and from under both crawlspaces. The schedule 40 piping then runs outside to a fan and is vented above the roof line. This system has a moisture water guard (10-year warranty), muffler (dampens noise), and exterior aesthetic package (nice aesthetic look). See the cover along with the vent pipe vented through the soffit and out of the roof.
Schedule 40 PVC Pipe
Vent piping leading from the extraction point in basement to the first crawlspace
Exterior Fan
Prowler LV Radon Fan, exterior aesthetic package, sound muffler, and moisture water guard (10 year warranty)
Main Radon Extraction Point - Basement
Radon extraction point in basement
Crawlspace extraction point
Creating negative pressure from under crawlspace 1