Guilty pool store tester here. Last year was our first year with the pool at our new home, but we didn’t live here yet so I did what was easiest re: pool chain store testing. Just ordered my tf pro kit. Did a ton if reading. Now I’m playing around in the Pool Math app. The one thing I liked about said pool store was a sequential plan - how much, of what chemical, when to add and how long to wait after adding each, and when it was safe to swim. How do I figure out my plan of attack using the pool math app? Our pool isn’t open yet but I’d like to be prepared.