Echoing what gkreutzer said - Thanks Daniel.
Just winterized my unit and took someone's advice on this thread. I had been pouring about 2-3 gallons of antifreeze in the fresh tank and then pumping through the plumbing. This time took a screwdriver and loosened the clamp on the hose right at the tank and then a 7/8" wrench and unscrewed the male threaded adapter from the tank. Stuck the end into a antifreeze jug and after pumping less than 2/3 of one gallon had bright pink flowing from all the outlets. Saved antifreeze and was quick and not diluted. Also used a leaf blower on the fill connection to accelerate and get complete drainage on the fresh tank.