I'm having a heck of a time finding the source of a sewer gas smell in the upstairs bath. I'm on a private septic system (tank & field)
Smell is only in the upstairs bath, and only near the toilet area. Can't pinpoint any exact sources. Can't detect smell from sink or shower drain.
I assumed it was the toilet wax ring, so I replaced that. No change. Next thing I did was to remove toilet altogether and seal up the drain hole with seran wrap & rubber bands. No help. All drains seem to work fine. I wondered if it was the vent pipe plugged so ran a hose down the pipe from the roof- it runs trhough just fine, I can hear the water running out the main pipe to the septic tank main pipe.
Could it be bad wax ring let some stink onto the plywood floor where the toilet sat? Wife is scrubbing that now.
Can't seem to find the source!
Septic tank could use pumping, we moved in less than a year ago, but I'd expect that to effect other drains too, especially the downstairs bathroom.
Any helpful suggestions would be appreciated!