Keep your pool inviting, clean, and clear. In only 24 hours, HTH Ultimate Mineral Brilliance Chlorinating Granules sanitize, clarify, and even soften pool water. The multi-functional 7-in-1 action also prevents stain and scale formation while effectively guarding against bacteria, algae, and other organisms. These fast-dissolving granules feature Visible Blue Action to let you know the granules are actively working to produce clear results. DIRECTIONS: Apply directly to pool water. Use only a clean, dry scoop to measure the product; do not use the scoop for any other purpose. Do not use in a floater or feeder. While the filter pump is running, add the recommended dosage of this product during evening hours. When adding this product to your pool, broadcast the product evenly over a wide area in the deepest part of the pool. If any granules settle to the bottom of the pool, use a brush to disperse them to prevent bleaching a liner or damaging the pool surface. Test free available chlorine (FAC) residual with HTH Multi-purpose 6-Way Test Strips, sold separately. Do not enter pool until the free available chlorine residual is 1-4 ppm (parts per million). Do not use the pool if FAC is above 4 ppm for risk of bodily injury. About the Brand: HTH was developed with the consumer in mind, offering products that are both economical and powerful enough for the toughest jobs. Within HTH’s wide selection of products, we offer everything you need for your pool, from algaecides and deposit control formulas to non-chlorine shock treatments, powerful surface cleaners, clarifiers, enzyme-based cleaners, and more. If you like using HTH, check out some of the other similar brands from our parent company, Sigura. With brands like Applied Biochemists, Leisure Time, GLB, Spa Selections, and PooLife, Sigura has a long heritage and more than a century of experience in developing innovative water treatment solutions for use in pools, lakes, ponds, hot tubs, and more. At Sigura, we have an unparalleled passion, pride, and commitment to delivering superior water treatments that improve the environment and enhance the security, health, and safety of the global communities we serve. With our track record of innovation and simple, intuitive solutions that anticipate needs, Sigura customers feel more secure as they enjoy their pools, spas, ponds, and lakes.