The Parson Manhole Insert-V2P is manufactured from high-density, high-molecular-weight polyethylene and is proven effective to reduce or prevent surface water inflow to the collection system through the manhole lid. Parson Manhole Inserts-V2P are a practical solution to expensive plant expansions, new construction moratoriums or high sewage treatment costs.
- Closed-cell, cross-linked polyethylene gasket provides a leakproof seal.
- Spring-loaded vacuum release valve is designed to activate at approximately 2.0 PSI.
- Spring-loaded gas release valve is designed to activate at approximately 1.0 PSI.