In my bathroom remodel adventure, I'm installing a Delta 500 Shower surround which is a direct-to-stud install.
I'm in the dry fitting stage, and everything is going well. When dry fitting the wet wall, I realized the control valve needs to move back about 3/4" to 1". The reason is that this wall was previously tiled, so with the tile and backer board gone, the value is protruding too far.
I cut the notch in the stud which was previously there about another 3/8" deep so the valve can move back as shown with the red arrow in the following picture:
The question is: how much flex is allowed in an install like this? I can push the valve back (and needed slightly to the right, maybe 1/8") without a whole lot of effort, but is this too much stress on the copper? Or do I need to cut the copper and I'm thinking a couple of 45* to offset it back a bit would do the trick.
Edit: I did the math and having back to back 45s create an offset of 1.4", which is too much, so if I do need to cut this, it looks like I'd have to bend a piece of copper myself the required amount and couple it in. Not a big deal, but if I can avoid it, it would be nice.
I made a quick video for you to see how much the value needs to move: