Two types of drainage systems can be readily adapted to collect radon from the soil below a house and exhaust it safely outside.
When the drainage system includes a sump, a lid with vent piping is placed on the sump pit. A radon fan is used to draw radon from the soil and through the sump to an outside exhaust point above the roof of the home. When placing a lid on the sump pit, it is important to remember to allow for future removal of the lid to
The second technique for using a drainage system works well when there is no sump but a foundation drain is in place that runs to daylight. A saddle can be used to tie into the drain and pipe then run to a fan. The pipe continues to a safe discharge point. Special check valves are used to seal the daylight end of the foundation drain. These check valves allow the fan to create a vacuum at the same time they allow water to drain.
When using a drainage system to collect radon it is important to maintain the drainage characteristics of the drainage system.
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