Ecozone\'s Laundry Water Softener Tablets with their 3-in-1 action formula, help to clean and protect your appliances while softening the water used in your washing machine cycles. Regular usage could save you energy by preventing limescale encrustation on the heating element and drum, and maintaining an energy efficient appliance. Prevents limescale build up occurring Softens water while making detergents more effective Protects & maintains appliance elements How to use: Simply place one tablet in each wash along with your clothes and normal detergent Washing machine manufacturers recommend the regular use of anti-limescale tablets to prevent a build-up of limescale occurring. They can also save you money by allowing you to reduce your fabric softener dosages. Prevents limescale build up occurring, Softens water while making detergents more effective, Protects & maintains appliance elements.