During an average rainfall, tens of thousands of gallons of Inflow & Infiltration (I & I) enters a Sanitary Sewer Collection System through the manhole cover pick holes and bearing surface or cracks in walls and improperly sealed pipe penetrations in manholes.

Check out the Inflow and Infiltration cost analyses to find out how much treating clean water is costing you, then take a look at our Manhole Inserts and Manhole Rehabilitation products for solutions to your problems. And while you're here, take a minute to browse through our other manhole related products.