Radical approach to keeping pipes from freezing in winter

[Morich]

The pipes are really one of the cheaper things that are likely to freeze when I consider what it takes to replace any of the holding tanks, water heater, and drain valves on black and grey tanks.

Then you also get to consider what damage is done if things freeze and break but thaw before you get back to the RV. Does it do in the floor, base of cabinets or where does it stop? Does anybody really want to think about cleaning 20-30gallons of black waste out of the basement compartments???