North South 6” PVC Pipe connects the radon mitigation system to Earth Tube Exhaust for the Garage which has a Wind Ventilator to ensure a minimum of 200 cfm

East West 8” PVC Pipe is connected to the Earth Tube Supply which is sleeved thought the garage footing.

Garage horizontal geothermal supply and return piping has been wrapped with a blanket before garage is backfilled.