Thanks Tosh - great post.
You don't happen to have a link to your post / vid about the control board you made....
It had a modification which meant you could remove it from the van in cold weather.
Sorry, I never saw this; no I don't but I just bought a little connector from Wilkinson's that unplugs from the wire that comes from the battery, so I can just unplug it, disconnect the hoses and take the pumps and controllers into the house.
Anyway, shush, I don't want to think about Winter; it's July; despite the rain.