Water beads under wall and cab

[gbkims]

update -- thanks to ft4now I found the access panel in the pantry, removed it and found that the hot, the cold and the anti-back flow valve (for the black tank flush out) fittings were all loose. I tried to tighten them but the water lines still leak.

Is the leak between fittings & the fixtures or between the fittings and pipes, PEX or the Soft Hose?

[Dick Noble]

The leak from the anti-back flow valve was from a loose nut. The other two, from the cold and the hot water pipes, are behind a large flat fitting that holds the fixture on by pulling the fixture to the shower wall. These black nuts go on the pipe threads. I intend to remove the entire fixture and caulk inside and outside the fixture at the pipes. I will also install shut-off valves. I was lucky in that my brother-in-law had a series of major leaks behind his hot water tank and he had to buy the tool for crimping the clamps onto the pex pipe. I have borrowed his tool and will use it to affix clamps to the shut-off valves. He also bought the tool for removing the clamps but we could not get it to work. I do not have to remove any clamps.

[Dick Noble]

Final update -- project is finished; main leak was from the shower valve fixture. After I got the entire thing off I caulked EVERYTHING. No more leaks.

[Cate&Rob]

. . . He also bought the tool for removing the clamps but we could not get it to work. . .

Hi Dick,

See the first post of this thread for the best tool for removing the style of Pex clamps used by Grand Design. https://www.mygrandrv.com/fo...x-Clamps/page2

Rob