Cured in Place Pipe Seattle. Cured in place pipe, also known as C.I.P.P., is the key to rehabilitation of old sewer and drain pipes in Seattle. The Perma-Lateral cured in place pipe lining system is used on residential, commercial and industrial applications in the Seattle area. If you live in Seattle and suspect you may be having problems with a sewer or drain pipe, call us to learn about the advantages of cured in place pipe and the Perma-Lateral system.