Drill a hole through the slab.

Remove soil for better air

flow or connect to drain tile.

Suction point into the sealed sump

basket cover. Pump continues to

function.

A device to show the system is

functioning properly.

Sump basket is sealed

and a sight hole is added.

Use a non-permeable

material sealed to all walls in

crawl spaces to create an

air tight seal.

PFE measure’s air flows below the slab to determine if proper air

flow can be achieved.