Cannot figure out! Main drain clogged or something else?
Hello,
Warning Long Post but I would appreciate any expert advice.
About a week ago the basement drain started backing up, rather even backfiring. So I put some drain cleaner in. I also noticed that it seemed to be the main drain because when ever the upstairs toilet was used the basement drain would start spitting out water. Also the basement toilet would gurgle(with bubbles) from time to time.
I got a handy friend to come by and rent a snake machine and snake out from a vertical clean out in a vertical 4" pipe. After going in for ages we could not go any further. So we took that out. The problem returned after a day.
So I called a professional plumber. He first snaked through the basement drain. Then he took off the toilet and snaked from there. The problem didn't fix. He said probably its at the city side and that he had done the best he could and charged me $180.
I called the city guys and they came after a while. They said that the problem seems to be on the house side. Because if it was on the city side the breather would accumulate water. I called the plumber guy back who charged me 180. He said that the house has an old P trap which sometime becomes useless over time and that the main lawn would have to be dug up and a straight pipe would need to be installed. Which would cost around $3000.
I am still not sure if that is the problem. The blockage if that what it is, is only partial and water does drain over time. The basement flush backs up and drains slowly. I have stuck a towel in the basement drain so water doesn't come out from there. I have also checked the vents on the roof by putting a small snake in them.
Can anyone figure out what the problem here is?
Thank you.
PS:- The professional Plumber also mentioned that after going in for a long while the snake could not go any further.