[ShrimpBurrito]

Dan - Can you post some pics of what it looks like on the underside at that spot? I see someone installed diamond plate mud flaps, so someone was concerned about a blowout, possibly because there was a blowout. And maybe that tire was changed, and that spot jacked up incorrectly.

Also, if you peek under the silver horizontal piece of trim, you can probably see some wood to get a sense as to whether there is rot there. You'll also want to take a close look at the fresh water connections to the outdoor shower, which you can probably see by removing the panel in the rear storage compartment (bottom left on the wall that faces you as you look in). Look for any signs of a slow leak while under pressure. Also, the pump cycling when no water is being used is a giveaway for a leak (when there is no water connected to the city water connection).

Dave