Wasps like the smell and sweet taste of propane, and will turn the pilot light areas in the refrigeration and water heater compartments into their next home. Wasps dont like the smell of flea collars. Cut one in half and place in your RV compartments.
If your seal dries out it can start to develop a slow leak draining out the water and causing a dry bowl. When this happens or as preventive maintenance a coating of Vaseline on the seal works wonders at keeping the seal nice and supple and leak proof.