where is the access door? should I be able to see that water line by removing the bins under the starboard side twin bed? If it's possible, I would just as soon insulate it even if I don't need it. Going over La Veta pass could be really cold, and if I don't re-winterize before we head home, I am afraid we could freeze up on the pass.
I like the idea of dry camping with jugs of water, and just treating the gray and black water tanks, but I am pretty sure that the chief of staff (wifey) will not be thrilled if she cant take a normal hot shower. So if it means I have to re-winterize before we head home, that's worth the extra work in my eyes!