Solid Stain-A-Way, Non-Phosphate Destainer, 4 lb. The world's first solid destainer for on-premise laundry. Unlike liquid destainers which can lose their strength within days, Solid Stain-A-Way maintains its bleaching power throughout the whole capsule. And with solids, there's No more bleached out carpeting or stained floors from spilled liquid. Phosphate free formula.