UPDATE - I winterized our rig this past weekend, mind you I am not a fan of the entire hose from the control panel to a single gallon of winterizing agent. I think next year I am purchasing a 3 or 5 gallon container and dumping the winterizing agent in that container. Since I was by myself, a few times, I was sucking air a few times when I ran out of the 1 gallon container. Mind, you I was a little annoyed that I did not get a hose, I had to run to Lowes...
As for the fridge, I ran and ran water out of the water dispenser, but no pink. Well, I tasted the "water", it was winterizing agent, apparently the filter was taking the pink color out of the winterizing agent. Then after that, I waited for pink ice cubes, realizing that they wouldn't be pink now, instead of ice, I got "slushy" cubes. Go figure winterizing agent would not freeze. Again, I did taste it and made two cycles of slush cubes.
Prior to the winterization and having regular fridges, the fridge would not allow the use of water or ice maker without the filter installed.
O well the joys of learning about the new rig... At least I know what to expect for next year.