Originally Posted by ostbob
I'm referring to when you are actually camping. It might be 60 during the day and maybe 20 degrees at night and maybe you don't have electric like at some state or national parks. Even with electric I don't have lower compartments that have any water lines or valves in them. All of my enclosed compartments are for storage or the propane.
My black/Grey drain pipes just run under the chassis, and as far as I can tell none of my fresh water pipes are exposed under the RV. The Blk and Gry tanks have the arctic pads on them but I've never used them. I'm told by those who just wing it that as long as there is some heat inside the RV I should be ok and the more water in the blk/gry tanks the better because it would take longer to freeze.
the incoming water line is what is most susceptible to freezing in the situation you described above, ... trickling a faucet during the freezing hours will prevent it from freezing, "moving water won't freeze", ... but you need to have the gray tank valve open the whole time you're doing that so your gray tank doesn't overfill and overflow into the RV, ... we use the shower for this because I can set the trickle there to what I want and it won't change, ... using another faucet, I would have to reset the flow ever time that faucet was used, ...