Abstract: A water-dispersible effervescent drain cleaner having a composition of approximately 20-60% by weight of a mixture of metal hydroxides, 20-40% hypochlorite generator, and 10-40% effervescent materials. Lubricant, colors and fragrances may also be present. The components of this mixture are compressed into tablet, pellet, granules, or high density powder forms. The particles are of sufficient density to drop through water to the point of a clog. The effervescent materials work to break up the tablets or pellets and to agitate the mixture. The hypochlorite generator, in conjunction with the hydroxides reacts to dissolve hair. The hydroxide and hypochlorite generate heat, which will dissolve grease and soap clogs and accelerate the dissolution of hair.