We had a bathroom remodeled a few years ago. About 2 months later we started getting a septic smell intermittantly in the bathroom. It appears to happen when the toilet in the 2nd bathroom is flushed. We had a plumber come out and reset the toilet. That didnt work. We then had a smoke test done and found smoke coming out from under the toilet. It was reset again with a new ring and spacers only now, when the toilet in the 2nd bathroom is flushed you can hear a gurgling sound (also intermittant) and still the smell is there. Any ideas?
We only smell the odor after someone flushes or runs water in the other bathroom that is near this one. During the smoke test, the smoke was coming out of the stacks on the roof evenly as if there was no blockage.
I would think that if the smell was coming from the toilet then you would smell it all the time. The plumber added spacers, caulked those, added an extra thick ring, and reset the toilet and caulked it.
The only plumbing moved during the rennovation was that the shower drain was moved about 6 inches to the left and we added a new shower valve. The smell does not appear to be coming from the shower drain but rather near the ceiling, and yet, when we look in the attic, there is no odor up there.