RV sitting for two to three weeks in 10 degree weather

I did ours for the first time this year. Probably way over done but once you find all the cubies where the valves are it shouldn't be a problem. My unit has a extra pick up tube to the pump that you stick in the antifreeze jug and pump it around to all the fixtures. The worst was trying to find the drain for the fresh water. Was ready to take a jig saw to the bed frame.