Water Conditioning Chemical Compositions Used in Swimming Pools, Fish Aquaria and Fresh Water Ponds and Lakes for the Purpose of Controlling Algae, Serving as an Oxidizing Agent, Preventing Formation of Scale and Rust, Coagulating Small Suspended Particulate Contaminants into Agglomerated Masses Large Enough for Removal by Filtration Systems, and Retarding Evaporation; and Chemical Cleaning Compositions for Sand, Diatomite and Cartridge Filters Used in Water Filtration Systems