Dewinterization freshwater cockpit

[buckster]

I have a boat that I need to dewinterize the sink in the cockpit and not sure how to do this. I had the service dept winterize the sink and not sure how to go about dewinterizing it myself. Any help would be great!

Thanks:)

[Chief]

fill, flush repeat. I'm sure they only put RV antifreeze in it.

[Aric'sX15]

Is it an MC? i didn't know that they could wintewrize a sink? hmm.
i guess theirs a lotta things i dont know. :D