Leaving potable antifreeze in the system

I don’t know if anyone mentioned it, but the water pump and the hot water heater still needs to be winterized if you use air. Also don’t forget to blow out the valve for the toilet.

I haven’t found air to be faster just different, and I can stay winterized and use the camper by flushing with RV antifreeze or by adding to the freshwater holding tank although that is a bit of overkill unless going on a long trip. YMMV.

Kenny, do you have a part number for the compressor to city water hose? I checked Home Depot's website and cannot find that. Thanks.

I bought this at Home Depot.



I set the air pressure regulator to 45 psi and start with the faucet furthest from the here.

I drain all of the fresh water including the water heater.

I open the outside shower first (hot and then cold for all of them), inside shower, toilet, bathroom faucet and then kitchen sink.

I leave each one on until nothing but air is coming out. When I'm done with the kitchen sink I go back and open each one one more time.

I pour some pink stuff into the P-traps and I'm done.

Compressor. But watch the psi, RV lines only rated to 45 psi. You can get an adapter with quick disconnect to compressor and std hose fitting on opposite end made for this purpose.

Slymer wrote:
I am not sure what the point of putting pink into a drained fresh tank would be, at any time let alone for a few years. In any case to winterize I blow out the lines, then flow the pink through, then blow out again. Makes is so much easier to get the pink taste/smell out of the lines in the spring because it hasn't been eating into the lines all winter.

First. If you blow it out. No need for pink. second. When I bought my camper they ran water thru the pump. I needed to get that out, Blowing won't blow out the pump. So I needed to get pink to run thru the pump. As I can't get to the back of my pump to hook a hose to pump directly out of a jug. I had to put enough into the fresh tank for it to pick up. And since I don't use my fresh tank. I left it in there. now I just blow it out because there is no water in the pump ..
Hope that explains it all to you.

I like the shop vacuum idea to pull the fluid out.
I have never actually winterized as mine is stored in warm So CA.

Geewizard wrote:
Are you guys using an air compressor to blow out the lines? What about oil in the air?

I use an oil-less compressor.

Are you guys using an air compressor to blow out the lines? What about oil in the air?

X3.
But dry winterizing requires some working knowledge where filling everything full of the pink drink is generally idiot proof.

Oh and for tanks and non potable stuff, windshield washer fluid works good and less expensive.

That following spring it seemed like it took forever to get rid of the smell and taste of it. I never used it again.

I started "flushing" the system with compressed air and just pour the pink stuff into the P-traps.

It gets down close to -20° here and I have yet to have a problem.

Now come spring time its fill the FW tank and I'm ready to go.

I would struggle leaving it in there for any extended period of time.

X2