My chemistry set includes: TF-100 test kit, liquid chlorine (available at hardware & big box stores, stronger concentration than grocery store bleach), muriatic acid, cyanuric acid, calcium chloride, and baking soda. Because I have a pool heater, I also stock Metal Out. I started with a small above-ground (inflatable) pool, then graduated to a small inground pool. TFP's Pool School and this forum has been immensely helpful. I've had clean, sparkling water for 10 years without any advice/excess chemicals from a pool store.