Dosage: Initially, add one quart (32oz.) per 10,000 gallons of pool water then 6-8oz. per 10,000 gallons of water per week for maintenance.
Jack's Magic Blue Stuff -Metal Solution Too
This is a professional strength, general purpose sequestering agent. The Pink Stuff helps prevent metal and mineral stains and scale in new pools and aids in removing stains and scale in older pools.