I know I keep saying thank you over and over, but I so appreciate all of your help. Does anyone have experience with the Taylor 2005 kit? The color of the reagent/water mixture in the comparator tube fades very quickly in both CL tests. ESPECIALLY the TC test. I'll definately admit to being a little color dumb to begin with but you have to move fast with getting those numbers or the solution starts showing lower CL. I ask because I wonder if the reagent is old or something? I guess maybe I just have to bite the bullet and admit I bought the wrong one and $60 something.