Does temperature of water affect carbonation process
Carbon Dioxide (and gases in general) dissolve more easily in cold liquids. This means that it's easier to carbonate (inject with Carbon Dioxide) your soda using cold water than warm. As your liquid heats up the gas falls out of solution creating the bubbles in your soda. Fountain dispensers usually have the water lines run through the ice hopper (or they have a cold plate) to further chill the cold water they feed to the machines for this same reason.