Sorry if this is a repeat question. Still new here and I've searched a few times but can't quite find an answer. This is my first time to do the chlorine drop test but I've had the tf100 test kit for a couple months now. I have two pods of the test powder. One is kind of a light gray/purple color and the other is a little bit lighter. I've read that as long as it still turns the sample pink then it is still good to use. Well I've tried with both containers and it does not turn the water pink but rather a shade of the gray/purple. I still tried adding drops of the reagent and stopped after ten drops because I was not seeing any changes. After a few minutes of sitting it starts to get a slight pink tint but I know that's not accurate. Do I need to get new powder? Can someone guide me in the right direction pretty please!