Limescale attacks and clogs up the machine's vital parts. It also reduces the efficiency of the machine and daily washing results. Our Home Our Planet Calgon and You Save Energy: by keeping your heating element free of limescale, Calgon helps your washing machine remain energy efficient. Our Carbon Footprint Our global factories are carbon neutral we are planting more than 2 millions trees through our Trees for Change project () Helps keep your machine clean. Helps protect heating element from over working and breaking down. Helps protect drum and plastic parts from becoming incrusted. Helps protect rubber pipe surfaces from deterioration. Helps keep a cleaner machine as dirt and detergent residues can rinse away more easily. Suitable with all types of fabrics. Calgon 2in1 water softener tablets. For cleaner laundry in every wash. Protects and cleans your washing machine by helping to prevent the build-up of limescale. Allows you to use only the amount of detergent required for soft water. Helps your washing machine work better, for longer. - Prepare and Use: Use Calgon in every wash. Add Calgon on top of your normal detergent in the main wash compartment. Dose the quantity of laundry detergent recommended for soft water. For best results use with phosphate free detergents!