Honest plumber needed.
Our drain (the lowest drain in the house) on and off returns water and when opening water,flushing water comes out from that drain.
We passed the snake in the toilet downstairs going into the sewer 50feet and then again 100feet. Everything was fine for 2-3 weeks but now again the water returns and comes out from drain and a real pain in the ass!!
If anyone knows a trustworthy honest plumber or had same issue, if you can advise.
Thanks in advance.