The video does a great job covering the steps and it isn't very complicated. People seem confused about the antifreeze, remember this isn't so you can use regular antifreeze, that is poisonous. I simply want to use as little of the RV antifreeze as I can because I don't like the taste and I don't want to buy more than I need.
It is also important to drain your holding tanks either before or after you do this. The little bit of water and antifreeze that might find it's way into those tanks as you winterize should not be an issue. If you get a lot of water in the tanks and don't want to go and redrain them you will have to put antifreeze in there as well.