We run the antifreeze through the lines. That way we don't bother with blowing the lines out and hope to get all the water out. Matter of fact, our local Camping World will not winterize the RV's here without running antifreeze through the lines. They say they can not guarantee them unless the antifreeze is through the lines. The antifreeze is non toxic and after you run water through the lines, you can't tell it's been there. But we do not drink the water from the RV either.
Over the winter, we will take the RV out once or twice camping. What we normally do is keep the RV winterized and just don't use the inside plumbing. We make sure we go to a campground/RV park with decent bath houses and park not too far from them if we can. Then we just use the bath house as if we were tent camping. If we gotta go or need to take a shower, just go to the bath house. That way, we do not have to worry about dumping anything. It makes camping about half as easy as when we hook up water and a sewage hose. Depending on location, we may go out to eat for dinner or lunch. Any food that is prepared at the RV is done normally. We just make sure not to put any water down the drain (we bring water with us in jugs). We heat the water on the stove to wash the pot/dishes (if needed) and wash them in rubbermaid tubs. We then pour the water down the outside sewer trap. Some places may have specific rules about dumping dish water if you don't have a sewer connection at your site. You can plan your meals to make them easier to have to avoid washing things.
If on hook ups, we will use an electric heater inside. Saves on propane.It can be done and just takes some small sacrifices. But I would rather sacrifice a little to be able to continue using our RV during the winter.
We got about 9-10" of snow last night. This coming friday, we are heading south for the long weekend to Hilton Head Island Motorcoach Resort. It will be in the mid 70's there and low in the high 50's. I will dewinterize for that trip and rewinterize when we leave. But it will only take a few minutes to do so. I will already be dumping the tanks. Just need run the lines dry and antifreeze through them. Then we are good to go. We may get another trip in during the month of march, but we have a week long tri planned to florida in April...can't wait!
Brian
2013 Thor Chateau 31L