When I do our Maytag (same unit different badge) I blow all the water out of the water dispenser. I the use the fresh water pump to pump antifreeze thru all the coach systems including the water dispenser. I leave the pump on and antifreeze in the supply bucket overnight with the fridge on making ice cubes. The cubes will not be froze hard due to the antifreeze. After I shut down the pump and release the pressure on the system, I removed the fridges water filter and marked it antifreeze for use the following winter.
