I never had any problems here locally in our local cold spots when it warms up again the next day. Seems like it needs to be below below freezing for couple of days to do harm to us. I unhook the fresh water hose and run electric heater in our POPUP setup.
We can also blow out our water lies real quick with our compressor setup but if I know it is going to warm up the next day I don't bother with ding that. These are temps just below freezing I am talking about here... Might be a different story it it gets down in the teens and never warming up above freezing during the next day...
Of course my only freezing problems are the fresh water tank and sink lines... Have never had a freezing problem with my cassette pottie flush water source...
Roy and Carolyn
I claim Horse Creek Country in Southern Ill - Momabear is from North Texas
We live in King George VA
RETIRED DOD DOAF DON CONTRACTOR Electronics Tech 42YRS
"We're burning daylight" - John Wayne
2008 STARCRAFT 14RT OFF-ROAD POPUP with PD9260C and three 85AH 12VDC batteries
2010 F150 FX4 5.4 GAS with 3.73 gears - Super Cab - Towing Package - 2KW Honda EU2000i Gen
K9PHT (since 1957) 146.52Mhz
"We always have a PLAN B"