You want to "Winterize" now.....and I'd suggest "De-Winterizing" in the Spring, and I'd also sanitize the water in the Potable tank in the Spring...especially if you only do it once a year. If you do it in the Winter, you would appear to be sanitizing the anti-freeze, not the water in the tank (which should be empty to avoid freezing).
Or, are you one of the many Snow-Birds, who has the RV sitting at home all Summer, and then heads south this time of year?? In which case...yeah, I guess you are doing things correctly....just out of synch from what most of us do:S
Bill & Claudia / DD Jenn / DS Chris / GS MJDogs: Sophie, Abby, Brandy, Kahlie, Annie, Maggie, Tugger & Beau ๐RIP: Cookie, Foxy & Gidget @ Rainbow Bridge.๐2000 Winnebago "Minnie" 31C, Ford V-10
Purchased April 2008:B FMCA# F407293
The Pets