[Bisjoe]

I have only done it twice now, and here it's too early, we wait until after April 1st when the state no longer allows studded snow tires. When you winterize you can use the pink stuff or blow everything out with air. If you drain and flush now, then leave empty and blow out you should be fine even a bit below 32F. On mine the most vulnerable is the low point drain, which hangs down unprotected. I like to flush with enough clean water until no more pink is visible, then add bleach to the fresh water tank and run through all the lines briefly and let sit 4 hours. Then I drain and flush again until no more bleach smell and then 2 more times.