[SteveC7010]

Drain the fresh water tank completely. What little water is in the line between the tank and the pump won't matter and it will mostly dissipate before winter.

You will have to locate your pump. It is likely behind a removable panel or drawer.

It's not necessary to blow out the lines before pumping in the antifreeze as long as you get strong pink at every faucet, toilet, etc.

Some folks will winterize with just blowing out the lines. It takes some experience doing it to be sure you get it right. The little valve that controls the toilet flow is especially vulnerable to freeze damage and it's easy to leave just enough water in there to break it.

Don't forget to drain the water heater.

All the waste tanks should be drained completely and a little pink tossed in each to lay against the valves.

Remember that freezing water breaks things when it has no place to expand into. A little water on the floor of the fresh water tank won't matter because it has plenty of expansion space.