20 Loads. Safe for septic tanks. Contains no phosphate. For best results in High Efficiency machines use Tide HE. Tide tablets with bleach are safe for colorfast fabrics. Some fabrics may be susceptible to color change when laundered as directed. Tide tabets with bleach are safe for colorfast fabrics. Colorfast test: Soak hidden portion of garment for 20 minutes in concentraed solution using hot water. If color change is detected, wash separetely in cold water.