What is I&I?

I&I stands for Inflow and Infiltration?

Inflow Examples (down spouts, sump pumps, foundation drains, uncapped cleanouts or vent pipes, or anything else that allows ground water to enter directly into a sanitary sewer system)

Infiltration Examples ( cracked or broken lateral pipes, cracked or broken main line pipes, faulty pipe connections, leaking manholes)


Category: Sanitary Sewer Collections
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