Clorox Pool&Spa Crazy Water Clarifier is a concentrated pool water clarifier that creates crystal clear pool water. The formula combines the small particles that make your water dull, hazy, or cloudy into larger particles that are easier for your filter to remove. You only need 1 ounce of product for 5, 000 gallons of water to see results. No dilution needed - simply apply slowly around the edges of your pool's deep end, and allow the pump to run for at least 8 hours.