First time winterizing -- how much pink stuff do i need?

[breal14]

24' class C, pretty standard set up.
40-45 gallon tanks all around.

how much pink stuff should i buy to plan for winterization next month. 1 gallon? 4 gallons? 10 gallons? i have no idea what i need. Anyone have advice?

adding it to my october subscribe and save discount on amazon

 

[John&Andrea]

Likely 3-4 gallons. I open low point drains, blow the lines out and keep the inside around 68 during the winter. Close the low point when blowing out the lines, do one at a time about 45 lbs pressure. I use a small heater inside. I don’t use the antifreeze in the lines, only in the drains. Just enough to fill the p trap. My drains should be good with the inside temp but just to be safe.
If you park it at home I would keep it warm inside during the winter.

 

[RandyB]

40 foot class A. I also blow the water from the pipes using compressed air. I do that to reduce dilution. I then follow with "anti-freeze". With 1.5 baths and a clothes washer, I use 5 gallons.

FYI... RV "anti-freeze" does in fact freeze, but when it does, it does not swell-up to burst the pipes.

 

[Holdmybeer]

Likely 3-4 gallons. I open low point drains, blow the lines out and keep the inside around 68 during the winter. Close the low point when blowing out the lines, do one at a time about 45 lbs pressure. I use a small heater inside. I don’t use the antifreeze in the lines, only in the drains. Just enough to fill the p trap. My drains should be good with the inside temp but just to be safe.
If you park it at home I would keep it warm inside during the winter.

That's all I've ever done to include draining the water heater. Doing two rounds @ 30-35 psi, letting the lines pressure up then opening one valve at a time until only dry air is coming from the outlet. A few pints of RV antifreeze in each p-trap and it's all good.

 

[John&Andrea]

Yes drain the water heater as well.