SEWER LINE REPAIR METHODS: CURED-IN-PLACE PIPE (CIPP) Repairing the City's sewer infrastructure is a huge part of what we're doing to meet Consent Decree requirements. Several methods are being used to repair or replace existing pipes. • Open Trench Replacement • Pipe Bursting • Cured-In-Place Pipe (CIPP)✔️ • Point Repairs Watch how our contractors install the CIPP. Here's how it works – 1. A special lining made of felt or fiberglass and containing resin is placed inside the old pipe. 2. The res