I've started typing this thread (and subsequently deleted it) several times. I hesitate to post it even now; this has been generally covered LOTS of times.
But after all that reading I still have enough doubt that my innate paranoia is being fed waaay too much.
Here's the question: How much 'frozen air' can a camper (in this case a 2017 Springdale 271RL w/Arctic Package) tolerate before pipes/valves/seals are damaged/burst?
I called Keystone Customer Service earlier and talked to a very helpful gentleman who understandably gave me guidelines but nothing concrete.
Being more of a by-the-book guy than not, I would love to see it documented that "Damaging conditions will not occur if the daytime temperature is above 50 degrees for 8 or more hours and the nighttime temperature does not fall below 32 degrees for more than 6 hours." (The extreme/paranoid version is "Once temps fall below 32 degrees, winterize the sucker and enjoy watching TV at home until spring.")
The reality of the above seems, however, that there are too many variables (wind, amount of shade, etc.) for such a statement to be made.
AND consider the above under two different circumstances: (1) while actively camping and (2) while sitting at the storage lot before winterization.
Ok. There it is. Anyone want to wade into this? There are several folks I respect here and value their input. What do the experienced campers do?