[JRTJH]

Every year at the beginning of the winter season we get questions about the "arctic package" and "heated basement problems". Then they seem to be "forgotten" until it gets really cold and people start having frozen pipes. They need to do something to "fix the issue of frozen plumbing" but honestly, mid winter in sub zero temperature is not the time to "FIX" it, rather it's the time to get it working again. Adding heat to the basement, turning up the thermostat inside (to share the heat "down below") and trying to prevent "cold air from blowing under the trailer" are some of the most effective "stop gap" measures.

The time to "FIX" the problem is next spring/summer, when you're not thinking about frozen pipes but the conditions are much nicer for "human intervention"... While it's warm and comfortable is the time to pull the coroplast, move plumbing runs away from the steel frame rails (where they're guaranteed to freeze) and to pull everything out of the closets/cabinets on outer walls inside the trailer and reroute the plumbing so it doesn't "touch the outside wall" by using small bits of rigid foam board between the wall and the pipe. Back under the trailer, if you look at the frame rails that make up the sides of "your heated basement" you'll see that they are not insulated, filled with holes ranging from 1" to 4" in diameter. That's like opening all the windows on your RV and wondering why the furnace can't warm things up inside.... All of those holes can't be closed, some are part of the slide mechanisms and must be open, but there are ways to seal much of the basement that is "for the most part, open to the elements all winter".....

As for frozen pipes in 20F weather, that's more or less a given way of life with today's "arctic package protection". If you can make it through until spring, don't forget about it until next winter. While the weather is nice, spend a couple of days under your trailer, improving next winter's "survivability"....