Jamie, we tried you tip and it helped a little. I brought the MH back to the dealer today and noticed that the hot water works good when running the pump and using my tank H2O. So it seems the problem is only on city water. Maybe water pressure is the issue. But when running water on the city supply I get huge swings in water temp. When just running the sink on the pump and onboard water it seems OK. I'll have to try showering on tank H2O with the pump on.
2014 FR Legacy
2006 Jeep Unlimited