Greenstory Global Cyanuric Acid Remover for Pool & Spa Skimmer Basket 1.5 lb Bag

Reduces CYA to appropriate level by quickly and effectively ending chlorine lock.One-step DO IT YOURSELF . just drop into any pool skimmer basket. Non-toxic and conserves water . no need to drain the pool and has no effect on water chemistry.CYA remover works at any water temperature. Requires minimal water flow rate (4-6 gallons per minute. Recommended to run the pump for 24/hrs a day until desired levels are met. Shut the automatic chlorinator off (supplement with liquid chlorine if needed) and simply toss the bag in the garbage when CYA levels return to normal.