Morton® Salt Clean and Protect® Plus Rust Defense® remove excess iron, giving you better-tasting water and helping to reduce rust stains. For the many households that have hard water, it is a solution for softer water that provides many added benefits. When used, Morton® Clean and Protect® Plus Rust Defense® is formulated to help prevent buildup in pipes and appliances, helping to extend their life and improve efficiency. In addition, makes dishes easier to clean and leaves hair and skin feeling softer after washing and bathing. To continue to see the benefits of Morton Water Softener Salt Pellets, it is recommended that every other month you add between two and four new bags to your tank, depending on the number of people in your household. In order to make carrying and pouring our 40 lb. bags easier, this bag features a sturdy plastic handle with an easy-tear opening.