Hanna checkers

[rburns24]

Discard the tip and the syringe that comes with it and just use an insulin syringe, which you can get at Shopper's Drug Mart. That way, you can measure exactly 1 ml. of reagent. It's very accurate. The other thing you can do is use a 10 ml. syringe with a point on it for your water sample. I can't imagine doing it any other way.