Originally Posted by Mark_Harrington
Thanks for the suggestions everyone. I just returned from a trip to Ely, NV. The night temps dropped to 21 degrees. I stayed at the KOA campground for one night. I kept the unit heated to about 56 degrees inside. The hose going into the RV froze about 9:00 at night, I went outside and disconnected it, and used the fresh water tank. It seemed to do ok but the next morning the black and grey dump tanks were frozen shut. I used the tank heaters. Thinking I should put anti-freeze in the tanks (except fresh) or use bottled water to wipe the dirt off... Any other ideas?
Give someone a $20 to let you pull it into their shop for an hour or two to thaw out. That's a time honored method around these parts. It's amazing how much better everything works once thawed out (wipers, doors, windows, ....).
Likely candidates would be any truck shop or any service station or Midas, Firestone, Goodyear, Sears, etc. that has a large enough overhead door. Watch that A/C and antenna!
While it's in there, throw a trouble light under the valves. Just be sure not to melt any platic-like components in the lines or in the compartment. A hair dryer would be wonderful if you have one on hand.