Robotic reinstatement is the controlled cutting out of lateral connections from inside a host pipe after a CIPP liner has covered them. A tracked or wheeled robot with a high-speed milling head is steered by the operator using its integrated camera to locate and cut a precise opening at each junction. The technique is essential because a continuous liner otherwise seals incoming connections, leading to backup of upstream flows. Reinstatement is typically carried out within 24 hours of the cure to take advantage of marker dye, sonde or pre-cure visual references. Engineers must follow PUWER 1998 and manufacturer-specific training requirements, and verify each cut on a post-works CCTV survey, which is also kept as part of the project's quality records.
Robotic reinstatement
Use of a robotic cutter to reopen lateral connections after a liner has been installed.
