We'll be camping up around 9K feet this weekend, and it's looking like it could dip down to, or slightly below freezing for a few hours saturday night. My guess is 30-32 for a 3-4 hours. Given it'll be in 50s/60s, and sunny during the day, what is the level of concern I should have over tanks/plumbing freezing? My thinking is the residual heat will be enough to keep the water in tanks and plumbing from freezing, or at least freezing enough to cause problems. Am I correct in my thinking there??
Alternately, would opening low point drains sat night to drain out most of the plumbing be helpful and/or good cautionary step? I don't anticipate much need for water after saturday night as we leave sunday morning. Alternately would running water a couple times over night be enough?