Jack's Magic The Blue Stuff is a proprietary blend that actually removes copper from the water. The Blue Stuff helps prevent metal and mineral stains and scale in new pools and helps in removing them in older pools.
It is a violation of Federal law to use this product in a manner inconsistent with its labeling.
Initial Dose: 1 quart per 10,000 gallons
Maintenance Dose: 6-8 ounces per 10,000 gallons weekly.