Sump Pump Sealing and Radon Systems in Sioux Falls

Call (605) 210-7667 You hear back from a person, not an autoresponder, within one business day. Call before 3pm on a weekday and it is usually the same afternoon.

Airtight sump pump lid with viewing port sealed for radon mitigation in Sioux Falls

That open crock in the corner of your basement connects directly to the drain tile ring around your footing, which connects directly to the soil. It is the largest single opening between the ground and your living space, and in a lot of Sioux Falls basements it is wide open with a loose piece of plastic laid over it.

The upside nobody mentions

Because the crock ties into the drain tile, sealing it does not just close a hole, it hands you a ready-made suction point that reaches the entire footing perimeter. On houses where the drain tile is intact, tying the radon system into the sealed sump often outperforms a cored suction pit and requires no drilling at all. When we can do it that way, the install is faster, cheaper, and leaves the slab untouched. First thing Marcus does on a walkthrough is look for the crock.

A proper lid, and what makes one proper

Gasketed and mechanically fastened, not caulked. A clear viewing port so you can see the water level without breaking the seal. A serviceable access hatch so the pump, the float and the check valve can be pulled without cutting anything apart. A grommeted pass-through for the discharge line and the power cord. Silicone smeared around a plastic lid meets none of that: it fails within a couple of years, and when the pump quits somebody ends up prying the whole thing off in a hurry.

If your sump has a floor drain tied in

Older Sioux Falls houses sometimes route a floor drain into the sump, and a dry drain trap is another straight path for soil gas. Cheapest fix in radon work: pour a cup of water down it every couple of months, or install a trap primer. Costs nothing and closes a real leak.

Will sealing my sump pump cause the basement to flood?

No. A sealed lid changes nothing about how water enters the crock or how the pump discharges it. The lid seals air, not water, and the float still has full range of motion.

Can I still service the pump after it is sealed?

Yes, that is the point of the access hatch. A lid that has to be destroyed to reach the pump is a badly made lid.

Does a sealed sump alone lower radon?

It helps and it is rarely enough by itself. Sealing is passive. The number comes down when a fan puts the space under negative pressure, and the sealed crock is what lets that fan reach the whole footing perimeter.

Available across the Sioux Falls area

Also serving Vermillion, Madison, Yankton, Mitchell for this service. Call and ask when we are next in your direction.

Related radon services

Need sump pump sealing and radon systems in Sioux Falls? Call (605) 210-7667 or send the form for a written, itemized quote. Back to radon mitigation in Sioux Falls.