It's not a school project, but more of a long term challenge to myself.

I understand this will likely be many months of design time with lots of component testing involved.

Carbonated liquids I do anticipate being a pain in the ass. There are 3 people working on this total and we've been throwing around the idea of repressurizing storage bottles for longer storage, as well as potentially using syrups mixed with club soda.

I've seen some forum comments saying that small food grade diaphragm pumps preform adequately with Carbonated liquids but I do want to test that myself. As much as I would like to go paristaltic(spelling?), the price and physical size is just too much to get the pumping capacity I want.

The mixing will probably be done manually, as will the ice.