Sewer odor when towing
We have noticed a strong sewer odor inside our 5th wheel when we stop for a break or to set up for the night. I have checked to ensure there is water in the bottom of the stool that creates the seal a...
Forum Discussion
doxiemom11 wrote:
Air admittance valves can let grey tank odors into the rv and they smell just as bad as the black tank odors. There is usually one under each sink. Cheap and easy to replace - purchase at Lowe's type big box stores around $20. Screw old one out - new one in.
Yes, I have replaced the one under the bathroom sink but not the kitchen. There is also a similar device behind the shower that is for the black water flush system that could also be contributing to the problem. It is accessible through a porthole in the shower stall. Harder to get my big hands in there as I had replaced this one a couple of years ago. I will keep after it one thing at a time until I find the problem.
