Laterals could be re connected from inside of the existing pipe allowing for no excavation. During this underground manufacturing process, sewer flows, which normally traveled through the pipe are routed around the construction area. In addition to the mainline flows, laterals which could not control their flows also required by-pass pumping. The City of Renton lies on the southern shores of Lake Washington. A body of water which is 26 miles wide and ranges up to 5 miles in width.
Numerous communities boarder the lake, including the City of Seattle to the west.
The 2,350 lineal feet of pipe consisted of three foot laying lengths. The system was installed with the best available technology of the time. Not only was it built as a conveyance conduit for sanitary discharges but also for assisting during wet weather periods. Being leak free was not a construction consideration, systems were not air tested for joint integrity until the 1950's. Herein lies the problem and challenge of many communities with older systems.