valve installation on alcove 32x32 shower stall
I purchased a Lasco 32x32 shower stall to be installed in an alcove. When I slide the unit into the alcove, the valve that was roughed in, gets in the way of the shower unit. The shower backs up to a wash/dryer so I could put an access panel to reach the shower valve but I would then be seeing the back of the valve and the block it's attached to and not the front where I really need to be. The wall situation is two 2x4 walls back to back. How do I push the valve back so I can slide the unit in, then get it back through the drilled hole and make sure it's attached to the mounting block correctly. Any ideas? Thanks