Hey Dav L,
I believe at one time or another, before I bought the RV, the fresh water tank leaked. The other thing I see is most likely the other areas the bay doors weren't adjusted correctly. The floors are really weak around the edges is why I suspect that. It looks fairly straight forward lie the flooring is in sections so to speak. Pull off the carpet type stuff, pull out the floor, and then reinstall. The bottom of the RV has metal that is under coated as a belly pan. Nothing leaking from there as far as I can tell. I'm going to redo the wet bay and the frsh water area at the same time. I want to remove the plastic wall in the wet bay, lots of storage area behind it being wasted. Thanks for the response.