When to winterize

[MilesAndSmiles]

The weather service is predicting a brief dip to 32 degrees on Monday night/Tuesday morning where I store my class A motorhome. Is this an emergency where I need to run up and winterize before Monday? Or is a brief touchdown at 32 really not a problem? Otherwise the lows are in the 40s.

[TheDuke]

A weather report of 32 usually means that it will hit that about 5 am. Even if it hits that for 2 or 3 hours it shouldn't/won't freeze hard in an RV. Even in a vacant RV it is warmer inside than outside in the Fall.

[Sculptor]

X2, it's not likely to freeze hard.  If you drained it, there is less to chance of expanding.  Even if you did not drain it, it should be fine.

[Kirk W]

If the low is only 32° there is nothing at all to worry about. It takes several hours down near 20° for anything to freeze enough to be a danger. As to when it is time, I'd start to plan for it now but so long as you are finished before temperatures fall into the mid to low 20's and stay that way for several hours or when it is expected to have high temperatures that get very little above 32°. 

[Ray,IN]

For many years I have had success with this: When lows do not drop below 27, and rise to above 50, water lines in an RV will not freeze solid, slush is immaterial, it's the solid stuff that expands enough to burst a water line.

[Vladimir]

I agree with Ray....I push it during hunting season and kept a thermometer in the bays. 25 degrees. That usually means the temperature drops below freezing for extended period of time.

I get up and run the cold water during the night and below 25 I get slush that the water pump finally pushes through and opens the flow.

 

[RV_Fan44]

I agree that I think you have nothing to worry about.