The other day I was fueling Loralei, our 04 Pace Arrow on W22 and opened the propane tank door to make sure the valve was off.
What I saw scared the heck out of me. A pool of gasoline was forming below the rig from a leak in the rubber hose that connects two 2” fuel filler pipes. This was right behind the generator which was still hot.
I wrapped it with electrical tape at my first opportunity and that stopped the leak until I got home.
Evidently the heat from the generator over time deteriorated the hose to the point of leaking. Got a replacement hose from NAPA. $26 bucks for 12”. Internal diameter is 2 inches. Just needed 5 1/2” but wanted to have extra in case I messed up.
Old came off easy enough after I sliced it length wise and the new went on with a bit of spray silicone and some whacks with a rubber mallet. No sparks please. Had to loosen the pipe hangers a bit to get clearance.
Anyway moral of the story is to add that to your inspections underneath if you have an older W22.