Hanna Phosphate Checker Vials

[FragIt Dan]

Originally Posted by monocus

it's possible a slight difference in r/o water,volume of water,liquid regent,powdered regent,etc.sometimes the mls are hard to see on the syringe.i did a control test 3 times and got results within 5 on all my readings

Sweet! I did the same thing and got results from 360-420 with my first three tests (all done at the same time). That gives me hope I will run a few more tests and see if I can get things dialed in a bit more. That was exactly what I was hoping to hear!