CIPP pipe repair uses something called a CIPP liner. A CIPP liner is essentially a tube made out of fabric with PU Coating. It can be inserted into an existing pipe with ease. The tube is impregnated with a resin catalyst mix that results in astructual sewer/drain replacement. The liner seals the pipe from the inside out, preventing water loss and other damage. A liner is a structural replacement just like replacing a sewer. It’s not a temporary fix. It’s a permanent solution. The process has been around for 65 years and is scientifically proven with a longer lifespan than PVC