Double Play is a bacterial enzyme drain opener and restorer that uses a blend of ‘nice’ bacteria with enzymes and solvent surfactants. Double Play removes built up greases, fats, and other organic wastes that can slow down drains and lead to clogs. Double Play is safer to use than caustic or acidic products. The bacteria in Double Play will form a biofilm which helps keep the drain running clear, long after the initial dose. Double Play will actually aid microbial cultures in septic tanks and water treatment plants.