Ok here is the sit-you-mo-ation i tiled up two custom shower surrounds and normally when i get to the shower valve controls i cut so the tile avoids the holes where the plumber needs to screw on the trim. But this time the plumber says i need to cut out more tile because there are to valves on the assembly that need to be turned on and he cant get to them. Here is the question i have been making the same cuts for about 8 years and never had a problem soooooo wouldnt it make more sense that if there are valves on this unit that the plumber forgot to turn them on before tile was done?.......hmmmmmmm watcha think