rclogg
Member
We lived in our 3570RS for 4 months in Florida this winter because of Covid. Came home cleaned out the coach and stored it, we to use it a couple weeks ago and the smell form the kitchen sink was bad. I'm really anal about cleaning out my tanks so that didn't seem possible. I replaced the anti-siphon valve, check the vents, still had the smell. What we discover was the piping above the p-trap had built up gunk in them. We pulled them out (take a picture before you remove) soaked them in some bleach water and clean them with a small toilet brush. No smell, half hour job, if you take the picture. Happy cleaning.
