The main sewer drain on the 96 year old house I had just purchased was backing up so I called Roto-rooter believing it was obstructed. Joe with Roto-rooter used a video camera to inspect the entire 129 feet out to the large city drain and I watched the whole thing. It was not stopped up; rather the old pipes had sagged and were lower in areas so liquid pooled and backed up if excessive. Cleaning was not required. Joe could not have been nicer and explained everything.
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