We are noticing a smell of sewer intermittently. we have thoroughly cleaned the black tank, including dumping 3 five gallon pails of water down the toilet. we also used 2 deodorizers. Help please
Is your bathroom vent open and is it near the black or grey roof vent pipe?
On my mh black vent pipe is less than a foot away from the bathroom vent and when the wind blows in the right direction, or air is sucked into the vent we get a sewer smell.