I have to replace a section of hose from the Bathtub valve to the shower block thingy. This isn't the exact faucet, but it looks damn close. There is just a red and blue graphic instead of "H" and "C". I need to get the back plate off but the handles have to come off to remove the center tube thing, which is just a spacer. There are no set screws anywhere The front cap appears to be a single piece and it doesn't seem to just pop off. How does this thing comes apart?