I have a 2005 Fleetwood PaceArrow 36B. I have water that drips from in front of the rear duals on the passenger side of the coach. I have checked and I am fairly sure it is not coming from the slide. ...
Could be mice, squirrels, rats......chewing through the PEX piping. Gotta pull off the underbelly covering and start tracing it down. Might even have to pull off interior paneling, if the valve-set is accessible that way...