Pulling trigger on pool purchase tomorrow with hopes to have all in by first week in September. First off I am a minimalist and have a SPA that I only use baking soda, chlorox and Nature2. Perfect water. With my new pool (18x36 vinyl), I will have a Hayward Aqua Plus and T-Cell-15 as my system. Taking the minimalist approach to the pool, what else should I begin my search for in regards to chemicals and stock up in prep for my install and use pre-close and next season?