Everything froze solid. Bundled up overnight and then headed to Winter Park. Finally unfroze when I came into the San Juans and the 2 PVC distribution valves both cracked. Easy replacement and I added insulation around those and everywhere else I could as well.
Wow, they've completely changed the plumbing from what I have in my 2015 fleet.
I'm wrapping my pipes with 12v heat tape, to solve this problem. You could likely do that as well, around that distribution piece.
I'm just doing manual control for now, but it would be easy to wire it to a thermostat.