I need help, my plumbing has been backed up for a year, with no money to repair we have used blow outs etc, according to one gentlemen that did snake it and show me how to blow back seems to think the actual clog is on the cities side of responsibility, however they refuse to dig until I expose all my drain pipe.Plumbing co wants 1300.00 to dig 10 ft section, so if I can find out where to buy the pipe locator my sons can dig to save money, any suggestions? I would be greatly thankful for any help. I am medically disabled and on low income, so there fore, 1300 is out of the quesiton.