Grouting and CIPP Put an End to I&I

Naperville, Illinois, turns to grouting as a complementary weapon to CIPP lining in the fight to tighten up its system.
Grouting and CIPP Put an End to I&I
Naperville Department of Public Utilities technician Dino Tinajero cleans up after flushing a sewer main with a Vactor combination truck. (Photography by Alyssa Schukar)

Naperville, Illinois, has been battling stormwater inflow and infiltration in the city’s sanitary sewer collections system for years. But after a natural calamity a couple years ago, the staff of the city’s Department of Public Utilities realized they needed to step up their game.

Bringing a new approach to the problem has made a huge difference in just two years, and officials expect to continue reaping the benefits.

That new approach includes some new techniques...

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