See Cured-In-Place PipeA long tube of clay, concrete, steel, metal, wood, etc., for conveying water, gas, oil or other materials. (CIPPCured In Place Pipe; a rehabilitation technique whereby a flexible resin-impregnated tube is installed into an existing pipe and then cured to a hard finish, usually assuming the shape of the existing pipe.) or LiningA rehabilitation process where a length of material is introduced to extend the life of the existing sewer. The lining may or may not utilize some structural strength from the existing sewer, and it may or may not function as a structural enhancement within the existing sewer, or an internal non-structural coating or lining material applied to a pipe. with Cured-In-Place Pipes.