How do I set the water hardness on the dishwasher, and when is special salt required?

Access the water hardness setting by pressing the Info button for 3 seconds to enter the settings menu, scroll with the > button until water hardness is shown, adjust with the +/- buttons, and save by holding the Info button for 3 seconds. Salt is not required when the hardness setting is 0–8 (soft water); for tap water above 7°dH (1.2 mmol/l), the water softening system and special dishwasher salt must be used. You can use the included Water Hardness Test Strip to determine your water hardness level. (Pages 20–21)