A maintenance crew at a large California marina was reinforcing the concrete seawall between the boardwalk and parking lot when they became aware of a 2-inch pressurized waterline leak. Excavating to locate the source, they exposed an 18-inch fabricated steel stormwater pipe buried 4 feet deep. The flattened pipe had no visible outlet in the seawall, yet apparently was connected to a catch basin in the middle of the three-quarter-acre parking lot. The marina’s building superintendent researched solutions on the Internet, then called John Rafferty of TRIC Tools Inc. and asked if sliplining would work. “A 10-inch fused polyethylene pipe
