NuFlow (C.I.P.P.) Pipe Lining After inspection of the line, a new, flexible liner is cut to the desired length. After an epoxy resin is injected into the flexible liner, it is pulled into place and inflated inside the existing pipe where it hardens to become a new, stronger one-piece pipe. For a more detailed explanation of the process, with pictures visit: http://www.nuflowtech.com