Advanced 2-in-1 design. PowerBall helps eliminate spots. Rinse agents last into the rinse cycle where they work best. The effervescent blue layer is fast dissolving and contains a special cleaning agent which naturally breaks down stubborn food stains like dried-on spaghetti sauce and oatmeal. The white layer is a super concentrated detergent. It removes even the toughest stains and gently scrubs your dishes, glasses and silverware sparkling clean. PowerBall Tabs are convenient, pre-measured and dissolve completely. No mess, no measuring, no waste. 25 Electrasol detergent tablets provide the same number of complete wash loads (25) as 80 ounces of powder (calculated using the weighted average of the detergent dosages recommended by U.S.. dishwasher detergent manufacturers). Electrasol detergent tablets are safe for septic systems.