My aquachem professional test kit has a 800# you can call, and supposedly they will send you more reagent free. I haven't tried it yet, but probably will soon as I will be needing some more CYA reagant. I'm hoping they will be responsive, they did send me some free test strips when I registered online. If you need the number, let me know, and I'll get it for you.

Bob P
pool newby
18' Pacifica ABG, 8600 gallon,Waterway 26 inch sand high rate sand filter. 2.5 hp dual speed pump