It's time to winterize...

Desert Captain wrote:
Yes, there are always at least a couple of gallons of water {added after a thorough flushing in both the gray and black tanks} so adding a couple of quarts of antifreeze is about right. The black and gray tanks are only 20 gallons each and the tank heaters are not huge. I just use them to take the edge off of the low temps.

The space heater is plugged into a GFI and has a kill switch if it is bumped much less knocked over. I had an electrician install the dedicated 30 amps with its own box just below the house breaker panel. Normal snowfall up here is about 23" a year spread over half a dozen 2 and 3 day events, no big deal but... last January we had 2.5' of heavy wet snow with temps in the mid to low teens which while unusual snow {like "stuff} happens".

Here are a couple of shots taken last January:







:E

I pretty much do everything you do, including the space heaters. No water heater tank, so not that, but agree with grit dog, don't bother putting RVAF in it. I don't turn on the tank heaters, but I do empty as much as possible while the weather is still good, and the fresh tank, too. RVAF in the traps, and if some winds up in the holding tanks, so be it, no harm, no foul. No RVAF in the fresh tank, personal preference.
Easier to keep the roof warmer than freezing, to clear the snow on top of my solar panels, than to get up there with a brush. It snows where I live, and often it snows a lot.
Also, if you've got a water filter, mine's under the sink, remove, and drain it. Don't forget to replace it, before you recharge the water system.
You got this....:C