I must add that to me, two hours is not a lot of time to spend winterizing a motorhome. If you rush through the process and forget one thing, like the tiny valve on the toilet, and it freezes and cracks, you now have a problem and most likely a huge bill at your dealers. I have always winterized our RV's, and it gives me time to check everything inside, outside, top, bottom, front and back, and I actually enjoy doing it. And there are always things that need tightened, or adjusted, or cleaned, or lubricated, or repaired, and this is a good time to do it.
I use an air compressor (30 psi MAX) to blow out the lines which takes time if done thoroughly, I drain the water heater, the fresh water tank, remove the whole-house filter, and a hundred other things, but I don't add the anti-freeze now. We keep our MH in southern South Carolina and use it during the winter, so unless I see that we are going to get some very cold temperatures, I don't use the anti-freeze. But if I do need it, everything else is completed, so I break out 2 gallons and suck it through the lines, which takes very little time.
Also, there are hundreds of posts and helpful comments from fellow RV owners on this forum that you can read. There is also a 17 page document done by an owner that details how he winterizes his MH. You don't have to follow it word-for-word, but it's amazing how I think I know it all, then I read something on this site and say to myself, "why didn't I think of that?"
Good luck!
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Susan, Ed & Ellee (RIP) Katz
2018 Jayco 29MV
2018 Chevy Equinox
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