Fixing infiltration and inflow

Once an I/I problem has been identified, there are many methods and technologies available to reduce I/I.

Pipe repair

Broken pipes, manholes, and joint connections can be repaired in a variety of ways. Trenchless repair methods require less digging than traditional “dig and replace” repair methods and minimize damage to yards and landscaping.

Pipe bursting is a technique that pulls a hardened steel breaker head through the old pipe, breaking it up, and replacing it with a new pipe all in one process.

Pipe bursting breaks and replaces side sewer lines.

Cured-in-place pipe (CIPP) repair involves pulling a resin-saturated liner through a damaged pipe, which is then cured with steam or hot water to form a tight-fitting, jointless replacement pipe.

Stormwater disconnections

Stormwater connections such as roof drain downspouts, yard drains, and sump pumps can be disconnected from the sewer system.

Disconnecting a downspout consists of cutting the downspout, capping the drainage line, and redirecting the flow.

Property owners can redirect the downspouts onto lawn and garden beds, hook up a rain barrel or cistern to their downspouts, or redirect the connections to a separate stormwater system.

Downspouts can be connected to cisterns or rain barrels.