Purple or Copper Cyanurate is caused when the Cyanuric Acid (chlorine stabilizer or conditioner) is allowed to become high or over 100 ppm and it then reacts with any copper that may present in the water. Purple Cyanurate is a chemical/mineral imbalance problem. It is NOT an organism or algae problem.
Rated for Class K fires, K-GUARD Fire Extinguishers are designed specifically to fight some of the toughest firesâhot grease, cooking oil and fat fires in the kitchens and food-prep areas of restaurants, convenience stores, food courts, hospitals, school cafeterias and other facilities.
Water-based fire extinguishers, called type A extinguishers, should never be used on oil or grease fires as they will cause the fire to spread. A type K fire extinguisher should be installed no more than 30 feet away from the cooking range, and the extinguisher should be inspected and tested yearly.