I know (at least I think I know) what's wrong!
When they built the coach they hooked the city water to the shower's hot water feed, and hooked the city water line to the shower. Basically they swapped the two lines. The hot water out the cold faucets is because the water heater is being back-feed.
My name is Peter, and I'm never going to grow up.
- Winnebago Era 2010 Class B
- Holiday Rambler 2006 Ambassador 40-DFD Class A