Quote Originally Posted by fhorta View Post
below is the description of the kit as stated on a google search. says it tests .5 to 5.0 ppm chlorine??



Description:A Complete Dpd Test Kit Designed For Service People, Commercial Pool Operators And Health Dept Officials Interested In Economy & Portability. Tests For Free & Total Chlorine (.5 - 5.0 Ppm) Bromine (1.0 - 10 Ppm), Ph (6.8-8.2), Acid Demand, Base Demand, Calcium Hardness, Total Alkalinity And Cyanuric Acid. Uses 3/4 Oz Reagents. Plus Titrants To Improve Accuracy.
The kit you describe here is the K2005 not the K2006 recommended here. The difference is that the 2005 uses DPD which only measures up to 5 whiole the 2006 uses FAS DPD and can measure to ~ 50 ppm. (the FAS DPD is also a LOT easier to read)