Hi, I bought this TF-100 kit less than 5 months ago and started using it since now my pool has been built. So when I do this test, I add the scoop of the powder and it turns into a deep pink, then I start adding the drops of the reagent and after a couple it turns into a light violet color, not clear as the instructions say. I have added 20 drops of the reagent and still maintains the same. So is something wrong with my test? or is light violet = clear?