The Blue Stuff does everything The Pink Stuff does and more. The Blue Stuffs proprietary blend actually removes copper from the water. The Blue Stuff is also very stable in higher chlorine levels and can be used in many fountain and water feature applications. Dosage: Initially, add one quart (32 oz. – 946.3 ml) per 10,000 gallons (37.8 m³) of pool water then 6-8 oz. (177.4 ml – 236.5 ml) per 10,000 gallons (37.8 m³) of water per week for maintenance.