AEG FAVORIT COMPACT 505 is a dishwasher that offers a range of features to make cleaning dishes easier and more efficient. The dishwasher has a built-in water softening regulator. The water hardness regulator must be correctly set so that it can soften hard water, which helps to prevent limescale build-up and ensures that dishes are cleaned effectively. The dishwasher also has a rinse-aid dispenser, which helps to prevent water spots and streaks from forming on dishes. The dispenser can be adjusted to dispense the correct amount of rinse aid based on the hardness of your water.