ROEBIC K-87 Septic Tank Cleaner, Liquid, Straw, Mild Earthy, 1 qt Bottle

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.