Pool cleaning and maintenance supplies, namely, chlorine for swimming pool in tablet form sold as a unit with instructional manual; pool cleaning kits comprised of chlorine for swimming pools, pool thermometers and swimming pool water cleaning and filtering units sold as a unit with instructional manual; preparations for removing suspended particles in pool water, namely, flocculant aluminum sulfate in tablet from sold as a unit with instructional manual; chemicals for pool maintenance, namely, chlorine for swimming pool in tablet form sold as a unit with instructional manual; chlorine tablets for pools sold as a unit with instructional manual; preparations for changing pH level of pool water, namely, pH reducer sodium bisulfate