Manhole benching is the haunching that sits between the manhole walls and the channel pipes, it should be constructed with a minimum pitch and provide a smooth surface to prevent the build up of waste and water from incoming branch lines. If the benching is not steep enough paper and solids will build up on the benching itself before falling back into the channel pipe, more often than not this will cause a blockage on the outlet of the chamber. USSR Ltd. breaks out the defective benching and rebuilds to ensure you get a complete sealed manhole base.

For more information on structural Manhole Re-benching please contact us on +353 94 9038795 or info@usa-ltd.ie