Nasty Little Water Leak From Behind Shower?

Luckily my fifth wheel has an access panel for the shower fittings on the wall behind the shower. Hopefully yours does too.
Good luck
Brenda

When I bought my Prowler it leaked behind the shower as the fittings on the back of the faucet came loose. thankfully it was on an outside wall and there was an access door. Two minutes to fix. If it were me I would make an access door as it may come in handy.

After the first few times using the shower in my new FW, I had a few little leaks. I noticed that the faucet was not sealed perfectly to the sub housing, that attached to the shower wall.

I took everthing apart to see if any water had gotten behind the actual wall. It was fine, but there was water between the housing and wall, that if let go, would have eventually spilled over behind the wall.

I also noticed that the black flush backflow preventer was located behind the shower wall. It had pex lines near the pex for the faucets. All this in a small space, with not much extra length in the pex.

I did get everything resealed, and no more problems. If that black flush valve ever needs replacing, it will require some pretty raw language, to get that job done.

I'd try to look in the opening, after removing the shower faucet, before cutting a hole in the floor.

Good luck Dave!!

Jerry