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 ; Chemicals for reacting with organic contaminates in water, preventing scum lines, filter clogging and cloudiness in water, and preventing floating and diving insects from gathering on a water surface ; Coagulating agents for precipitating floating debris and unfilterable material in water ; Foam reducer for water ; Stabilizers for stabilizing chlorinated water against attack by sunlight, ; Stain controllers, namely, sequestering agents for preventing staining, scale and rust in water from depositing on pool equipment, pipes and fittings