With the amount of money you will be spending on ingredients, the amount of effort it takes, and the much higher risk of things going out of control and the levels going up, down and all over the place, you may aswell spend $150 or so on a single gauge regulator and needle valve off trademe, then rent a bottle from BOC for $10 a month, and you have instant co2; extremely reliable, extremely safe, no effort, no risk, doesnt cost tooooo much, a bottle lasts ages and altogether its WAAAAAAAYYY better :breath: