I have a 1965 Draft A & W Root Beer Machine (Made by Sinco in La Port Indiana) that I have used for 30 years. My service tech has passed away and no one in the Tri State area will work on it. It looks like a very simple beverage system with old parts. The system has two motors with procon pumps. One pump moves the root beer syrup and the second pump moves the water to a common output tube (containing root beer and water combined not carbonated yet). This tube leads to the input of the 48 oz carbonator tank that has a 3/4 inch hole for the probe (probe has two stainless steel rods one 2 5/8 inches long and the second rod is 4 inches long extending into the carbonator tank). Two wires leave the probe and go to a liquid level board that turns the two motors on and off. Before the service tech passed we used the last back up liquid level control board and he commented that he could not find anyone to rebuild the boards. Now the board is bad or the probe or maybe both. I don't want to use the old technology and would like to scrap the board and tank and go with a McCann Big Mac carbonator. I have talked to McCann and they are not sure the float system in the tank will work properly with root beer / water coming into the carbonator. They have only used water as the input and added syrup to the carbonated water thus getting root beer. The old timers have told me the reason A & W carbonated the root beer syrup and water at the same time was the secret to the great tasting root beer. Since we have done this for 30 years with a great deal of success .... I would like to continue this way. Has anyone updated old equipment like this?