For all you plumbers out there, I have a question. I have two showers in my house that I bought about two months ago. The one upstairs works just fine, no problems. The one in the finished area of my basement, however, doesn't ever get hotter than medium luke warm. You can take a shower in it and not freeze to death, but it's definitely now billowing with steam. I wouldn't think it's a problem with the water heater since every other sink/shower seems to get hot just fine. Can anyone give me a suggestion on how to take care of the situation? Is it just a matter of turning a valve or something or am I going to need to call someone?