I have to install a new rough-in valve for a shower, as the homeowner wants to change to a different brand of faucet while updating their bathroom.
It is a 1-piece pre-formed stall shower (fiberglass, acrylic or whatever), and there is no access available from the other side of the wall.
Presently there is a 4″ hole cut in the shower wall for the existing valve.
I’m no stranger to plumbing work, have no problem cutting/fitting/sweating copper, but access on this job will be a little more challenging.
Does anyone have tips or advice on how to attack this replacement? I assume it is ‘somewhat’ common…
Thanks in advance,