Our upstairs tub/shower has a hot water issue. Specifically, it takes forever to get hot, and when it does, you have to leave it cranked all the way to the hot side to keep it close to comfortable. The pressure is really low as well. It is the only fixture in the entire house that has this issue. The sink right next to it has great hot water. This has been going on since we had the leaky tub/shower faucet replaced, tile installed, and appropriate drywall repairs made, in December. As we paid (different contractors) for both of these faucets to be installed and neither is quite right, I'm pretty much on the "if you want it done right, do it yourself" path. The new fixture was made by Moen. I have to find the problem to fix it. I've checked the shut-off valves to make sure they weren't off. That's the dummy check. Hubby and I think it might be a valve (the anti-scald) inside the fixture itself? Suggestions?