The sun's UV rays can destroy 90 percent of the chlorine added to the pool water in just 2 hours. Regal's Conditioner extends the life of chlorine 8-10 times longer by protecting chlorine from this UV loss. Our professional quality Conditioner allows the chlorine to stay in the water longer, reducing the cost of chlorination. Enhancer Chlorine Stabilizer 100% Cyanuric Acid (Conditioner) Dosage: 2.5 pounds per 10,000 gallons.