Roebic Laboratories, Inc. K-87 32-Ounce Soap Digester Product Description Contains specialized bacteria to digest and degrade soaps and detergents, proteins, starches, fats and grease in drywells, septic systems and cesspools. Non-volatile, non-corrosive and non-flammable. Safe and easy to use. Harmless to the environment. Use 1 quart for each 500 gallon capacity twice a year. From the Manufacturer K-87 is a unique product that degrades soaps and detergent that can clog plumbing systems. Soaps and detergents tend to accumulate and "crust" in pipes causing slow drainage and killing the beneficial bacteria in wastewater systems. This combination bacteria lives on soaps and detergents and enzymatically breaks them down. This product is useful for any plumbing system, whether it be drywells, septic, cesspool or municipal. Features Degrades soaps and detergents Use in septic systems, shower and laundry drains Safe for all types of pipes Certified biodegradable Easy to use USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.