Jack's Magic The Pink Stuff helps prevent metal and mineral stains and scale in new pools and helps in removing them in older pools.
* Meets Recommendations of Leading Chlorinator Manufacturers
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.