I was wondering how much maple syrup it would take to carb 5 gallons at 2.0 volumes? I'm not sure of the sugar contents of maple syrup so if you could explain your answer thanks.
Personally, I consider using maple syrup a waste, because the amount of syrup you'll use to prime will not be noticeable. But if you have a lot around, just look at the grams of sugar per serving. I've got some that has 53 gm per 60 ml serving. Figure sugar at 200 gm per cup.