Water issues have been sorted, mostly thanks to that schematic that was posted. As it turns out, the manual shows and describes valves with only 90 degrees of travel. The valves in my coach actually have 180 degrees of motion. Either someone broke the stops, changed them out, or the documentation is wrong. After that realization, it was just a matter of trying the different positions until I got the result I was looking for at each valve.
The only thing I lack now is firing up the hot water heater and confirming its operation.
Thanks again for all the help.
