Helps Clear Cloudy Water in Spas and Hot Tubs ClearRay® Water Clarifier coagulates the tiny particles and oily liquids that build up in your water so the filter can remove them. But unlike single purposed clarifiers, this product does more than make your water look clean. It removes excess metals, eliminates oil and scum, and improves filter efficiency. Directions for Use: 1. Clean your filer if applying initial dose. 2. Squirt desired dose, 2 ounces reats 500 gallons, across the water's surface, no premixing required. If your water is especially dirty, you can double or triple the dose. 3. Allow at least 1 hour of continuous filtration. 4. Maintain your water's sparkling clarity by using every week.