Stemming the Flow

Cured-in-place lining system helps a Pennsylvania township cut manhole I&I and save big on treatment costs.
Stemming the Flow
Corrosion and missing mortar in Lower Frederick Township manholes allowed 40,000 gpd or more of inflow and infiltration to reach the 200,000 gpd (design) sewage treatment plant.

Mortar missing between manhole risers in Zieglerville, Pa., created large gaps through which Perkiomen Creek poured when flooded. Flows frequently exceeded the 200,000 gpd discharge limit at the sewage treatment plant.

"Surprisingly, we didn't have overflows or manholes backing...

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