Water purifying and treatment chemicals for swimming pools, spas, and hot tubs, namely, chlorine, lithium and bromine water chemicals, slime removers for water, balancers for adjusting and buffering ph, total alkalinity and hardness of water, chlorine and non-chlorine shock treatments for oxidizing water contaminates, clarifiers for agglomerating particles suspended in water to facilitate filtering, reacting with organic contaminates in water, preventing scum lines, filter clogging and cloudi...