We had our house built six years ago and have had a nagging problem with our Powder Room toilet.
There has always been a slight smell like sewer gas coming from the inner ring of the bowl (not the outside). I have checked to make sure the toilet is good and secure to the floor and there are no leaks. We have cleaned the bowl and inner tank thoroughly. We have a septic tank system and had it emptied several weeks ago. The odor is still prevalent. Does anyone have any recommendations?