When you shake the curvette,Are you supposed to put in and shake it or shake it first then put it in since you only have 2 minutes to do it so says the instructions?
You add water to the cuvette, place it in the unit and take a reading to ZERO (calibrate) the unit. You then add the powder to the cuvette, mix it, place the cuvette back in the unit and get a reading in 3 minutes.
I just ordered on and i should have ordered the Phosphate Reagants 25 pack at the same time as when i ordered the meter, to save on shipping hopefully the will notice and refund me some off my shipping cost. this thing looks like a great unit cant wait to get it