Dazzle's premium, unstabilized granular chlorine shock is a quick dissolving product that comes in a convenient 800-gram bottle. One bottle can treat up to 80,000 liters of water. Simply add the product to a bucket of water to mix it prior to pouring it around the edges of the pool. For best results, it is recommended to apply the shock in the evening. This product is ideal for situations where a strong chlorine shock is needed, such as for algae treatments, chlorine demand issues, and superchlorination treatments. It can also be used as a regular preventative shock.