Bathroom Sewer Gas smell - conflicting solutions
Posted by ConnieC on February 11, 2004 at 12:42:32:
We've had a problem with sewer gas smell coming up the drain in our first floor bathroom sink. I had yet another plumber out today and got conflicting opinions. I'm trying to figure out what to do, so I value advice. The plumber determined all vents are open and working fine. He then put a camera down the toilet and found about 8 feet from the bathroom, at a Y, a backflow. He said water from one piece of the Y was coming back up towards the toilet. That, he said, was causing water to be pulled from the sink trap. Then I got really confused. He said the "correct" fix was to dig up my floor with a jack hammer and replace the "bellied" piece of pipe where the backflow was, OR we could simply put a special deep trap on the sink. He recommended digging up the floor even though he said the deep trap on the sink might fix the smell, because it should be fixed "right". What do you think? What course of action should I follow? Can bad things happen if I simply change the trap?


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