i have made root beer for years and make it for large and small parties. every halloween my wife and i make 40 gallons to give away. as you can see from the machines that are on the cart, they are quite large and not easily portable. they are my 3rd generation design and i made them a number of years ago. i wanted to make a small one so i made it this week. the big ones make 12 gallons between them at a time. the small one is 3 gallons.
6" pvc and copper plumbing and abs cam-lock quick disconnects and pressure gauge and pressure regulators.
they are a lot of fun and i have made hundreds of gallons of rootbeer in them.
i will bring the small one to our ralley in texas next week.