Venting Stack
Pipe passing thru closet laundry chute on 2nd floor.
Venting Stack
Pipe extending from 2nd floor ceiling into the attic.
Roof Penetration
Venting through asphalt shingle roof.
Suction Point
Location of suction point in the basement storage/mechanical room. Cracks in floor sealed.
Sump Pump
Void between sump pump shell and the concrete is open ground. Used expandable foam to seal the open area.