My neighbour complains of water leaks from my toilets to his basement. I asked a plumber to find the leak, and he suggested an hydraulic test, which involves:
1) taking out the toilets
2) blocking the drain
3) adding water to the toilet hole
4) wait to see if the water level stays (pipes ok) or goes down slowly (pipes filtering out water).
The cost and time are outrageous. When I suggested running the test WITHOUT taking out the toilets, he said no, because of the curve in the pipe inside the toilet, holding air and preventing the test.
My suggestion was to take out the air with a syringe and plastic tubing.
Who is right?
Thanks for any clue!