Rainstopper - HDPE Manhole Insert - Brochure

The HDPE Rainstopper is a patented manhole insert designed to reduce inflow in your municipality’s sanitary sewer system. It also reduces the inflow of street level contaminants, while simultaneously controlling the escape of undesirable sewage odor and minimizing traffic related manhole noise and cover displacement. The insert is manufactured in the USA to precise, custom specifications from extremely durable HDPE plastic. Its unique design allows for the venting of sewer gases through a non-mechanical device, reducing maintenance costs by eliminating moving parts. Weighing only 2 pounds, it can easily be installed by a single person. No engineering necessary.