Black tank sprayer

[Razrbk]

When winterizing..., do you run antifreeze through the black tank spray washer?
-- Thanks

[Mr Pachu]

I pump antifreeze through the black spray washer line as I want to make sure all of the water is out of this hose.

[Rondo]

I do the air blowing method of winterizing because our unit sits inside a building. I did blow out the black tank flush line just to make sure it did not have water in it while storing it. I could hear the air going into the black tank and the water in the line going into the tank also so I know it was clear. The only time I use the pink stuff is in the traps of the sinks and shower and I also put it in the stool so the gasket does not dry out. It has worked for me for the past few year so I guess I'm doing something right. I do run the water pump to free any water in it also so it does not freeze and split the pump.

[BB_TX]

I run the outside shower until I see antifreeze. Then I connect the outside shower hose to the black tank flush connection and let it run a short time.