I have two bathrooms upstairs, and the configurations is set so that the two bathtubs are back-to-back. A few years ago I had some remodeling done on both bathrooms, with a cultured marble surround in each. Now I am having trouble with both faucets, and I do not have an access panel to do anything. That means I will have to tear off the panels (and breaking them) to access the plumbing. What I would want is a way to remodel the bathroom so I can access each bath's plumbing without ruining the place. I can access the plumbing somewhat from the garage on the first floor, but nothing like replacing the faucet assemblies. Do I have to move the bathtub or shower to they are not back-to-back? That would be problematic. Anyone with any suggestions?