Traveling across the northern US in late spring?
We're wondering about the temperatures and whether we'll be able to keep our water supply from freezing. We're new to RV'ing and plan on leaving Ohio April 1st and heading west and south (Springfield, St Louis, Tulsa, Oklahoma City, Amarillo, Sante Fe, Flagstaff and eventually LA). I don't see this as a problem, but wondering about the trip back. Leaving LA maybe late April and heading up to Portland and then start heading back east through Idaho, Wyoming, South Dakota, Iowa, and back through Illinois, Indiana to Ohio.
We're driving an '03 Monaco Monarch SE with a bay heater in the basement compartment where the water lines are. What do you think? Are we nuts for considering this northern route? I've looked at temp charts for these northern states and they run from the low 30's to the high 60's, just a little worried about when we're parked and keeping the fresh water tank from freezing, I don't know if this tank is inside (maybe under the bed) or outside the coach.
Any help, advice, insight is appreciated.