Thanks for all the responses. Nope, I don't have enclosed/insulated tanks or tank heaters. In the year of looking at used/new TT and toy haulers from KS to AZ I've never seen one of these before. Either my budget was too low or I didn't go far enough north :)
After reading through everybody's responses, I think my two areas of concern are the 3 exposed tanks and the exposed 10 ft. of 1/2" ID hose running from the freshwater tank to the pump.
I don't plan on purposely camping where it's below freezing. The scenario I'm referring to is being on the road, too tired to drive, and being forced to stop on a 4,000-8,000 ft. pass somewhere . . . just when a massive cold front moves in with temps way below freezing.
Although I'm not convinced it would be necessary (heat would be on in the TT), I kinda like WyoTraveler's suggestion to do a quick winterization on the spot. I just installed a splice in my freshwater hose line just for that purpose. Would probably take me 15 minutes to get RV anti-freeze flowing throughout the pressurized part of my water system.
As for the 3 tanks (and the freshwater hose), I assume the best course of action is to completely empty them, right? Was also thinking I would make a point of emptying some of the water from the freshwater tank into two or three 5-gallon water jugs and store them inside for use in the morning.
Other options? Thanks!
