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Author:
TONY W (NY)
I added a 2nd bathroom to our shop I'm not a plumber I know just enough to be dangerous.The existing bathroom has always worked fine . I built the new bathroom back to back with the old one . The toilets are back to back also . There is aprx 2ft apart .on the same 4" line the vent is between them the old toilet I would call upstream from vent the new one is after the vent but only 12"or less from it .after using the toilets a few times both toilets seem to air lock. If you stop using them both for aprx 1 hr or so they will be OK .I stopped using the new one for a week and didn't have any problems with the old one .I'm hoping to come up with a solution without getting in to the concrete floor .please help
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Author:
packy (MA)
the vent is not your problem. possibly debris in the pipe?
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Author:
hj (AZ)
WE would have to see HOW you connected the two toilets but it appears to be a problem with the drain line, rather than the vent.
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