just a little figuring to find now many time you would need to yank on it to make 5 L
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so going by the 10ml max amount and there are 1000 ml in a L means a guy would have to jerk a load 100 times for a L. that means 500 tugfests to get 5L. either you would have one super huge arm or if you are a pro you may have both arms working full speed to get them 5L of swimmers