In my outside Drain Lines bay there is a single line that runs from the water pump which 'dead ends' and has a valve on it. Is that what I would put in anti freeze jug, open valve, and pump through lines?
Could I also put that line in a spare water can if I run the water tank empty on a trip?
As far as Winterizing, I guess I could flush the anti-freeze, reset valves, and fill the tanks and leave the same day. I usually prep one day and leave early the next morning or late that night. If I fill the tanks/lines one day and not leave until the next day, I would run the risk of everything freezing overnight before I go wheels up. Otherwise, I guess I pack up, drive South to slightly warmer climate before I load water. Just curious how you cold weather people do it.