I camp in the cold every December going north for the holidays to be with kids/grandkids, then back south. I usually watch the weather closely but only had one issue when waking up to 27F when it was suppose to be low 30’s! My pex are all exposed, my manifold froze over, after a quick thaw, things were operational again. I wouldn’t sweat 32F, but I’ve since insulated and heated my exposed pex, and added a heater to my wet bay. Of course since doing so, I’ve never had to use any of it.
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