CIPP is a trenchless technology that impregnates a felt tube with epoxy resin and hardeners. The resin-saturated tube is pulled through an existing underground pipe system and used as a conduit to create a new inner replacement pipe.
Once in place, the epoxy filled tube is cured with hot water or steam allowing it to expand and form a new pipe within the existing pipe. The (CIPP) process is not invasive and causes minimal disruption to traffic, work productivity, or people in their homes. Municipalities typically perform CIPP installations by accessing piping systems through city manholes.