Two or three times per week, sewage backed up into the emergency room, radiology department, and cafeteria of the Martin Memorial Hospital in Stuart, Fla. Despite constant jetting by the maintenance contractor, stoppages continued in the 6-inch cast-iron sanitary sewer servicing the north side of the building.While the hospital maintenance staff searched for solutions, a plumber tried unsuccessfully to rod the line. Other plumbers trying to inspect the 400-foot-long pipe through a 4-inch cleanout in the emergency room reported massive trenching and much of the invert missing. Three plumbers declined to try rehabilitating the line.Open-cutting to replace the pipe would
