Spa 56 Granular Chlorine is a spa and hot tub sanitizer that can be used on a regular maintenance basis or as a strong shock. Made with sodium di-chlor that features a strong 56% pure chlorine, this spa treatment comes in a granular format that does not need to be pre-dissolved and does not add unwanted calcium or leave residue. Leisure Time Spa 56 also destroys foreign organic material that comes from human use, making it a high-quality chlorine source for spas and hot tubs. Broadcast directly into spa water with jets running. Maintain free chlorine levels between 2-3 ppm. Wait 5 minutes after adding to soak. Use caution and follow instructions when handling spa chlorine. Chlorine works best if pH and Alkalinity are balanced in spa water. About the Brand: Leisure Time was developed for use in spas, hot tubs, and jacuzzies. Our water care products are both economical and powerful enough for the toughest jobs. Within Leisure Time’s wide selection of products, we offer everything from algaecides and deposit control formulas to non-chlorine shock treatments, powerful surface cleaners, clarifiers, enzyme-based cleaners, and more. If you like using Leisure Time, check out some of the other similar brands from our parent company, Sigura. With brands like HTH, Applied Biochemists, 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.