Sewer smell inside RV....Help needed....
I have an issue with sewer smell inside my RV. I have done as others suggested and replaced the air admittance valves under my kitchen sink, and under my bathroom sink. I still have the sewer smell. ...
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also if you have the vent fans going and flush you will get the smell inside if the valve is open or not. Make sure water is in the washer trap if you have one. What we use in our gray tank: 1 c. borax powder dissolved in 2 cups hot water and one cup Dawn Platinum (make sure it says Platinum) after we dump the tank with the valve closed. Add about a gallon of water. Let the tank fill up then dump. Repeat as needed to keep the smell away. For the black tank we use Thetford Blue.
