80% of German households have medium-hard to hard water. The harder your water is, the more limescale it contains, which is deposited in your washing machine. Limescale residues collect in the machine with every wash cycle. Over time, this can cause heating elements to overheat, hoses to clog and the drum to become harder to turn. Calgon's liquid Power Gel helps protect your machine from this damage by preventing limescale build-up. Less limescale not only means less problems and damage to your washing machine, but also less energy consumption. Calgon's 4in1 Power formula also helps keep your machine clean from odour-causing particles. It removes detergent residues, clothing fibres and dirt. Unsightly soap residues are also removed with the effective 4in1 formula. These residues can be causes of bad odours in your washing machine. Calgon 4in1 Power Gel can be used with every wash to protect and clean all the important working parts of your washing machine that come into contact with water. Use the liquid gel to remove limescale together with conventional detergent. Add it to the main wash compartment in addition to the detergent and dose the detergent as for soft water, this is the lowest dosage.