January 2016, My friends, one lady over 80s years old, had a toilet drain clog and completed stopped. She used Drain Doctor Inc, One man came and tried Cable, it didn't work, and they charged more than $400 for that work. They told my friend that there were serious problem about the drain pipe outdoor, they asked more than $4000 in total. and they dug out the drain pipe out door near the house. My friend tried Drano, IT WORKED, Problem is simple and SOLVED!!! My friend told them to stop the work. But they CUT and REPLACE the drain pipe with plastic one with in opening which may be convenient for future maintenance. The Drain Doctor didn't correctly diagnosed the problem, didn't solve the simple problem,and ask more than $4000!!!! My old friend solved the problem.