How about a "how to" video showing exactly how to do the tests and how the results should look? Some people are intimidated by the thought of chemistry even though in reality it's so easy. Others like myself might be confused by color changes. For example, I kept adding baking soda to my pool trying to get the alkalinity up enough to get the test sample to turn red, not knowing until I posted here that just turning pink is all I needed to get an accurate reading.