LOL. Isn't it like being a kid at Christmas again GT? My new kit is scheduled to be here on Thursday!! It would be interesting to test my tap water plain, then with the Pur filter turned on, then the filtered water out of my fridge, then Dasani or Aquafina and some of the so called spring waters. I have too much time on my hands now that I subscribe to the BBB method and no longer fight algae daily with Baquacil shock, sanitizer and algistat, pink treat, constant brushing and vac'ing, etc...