What type of detergent should I use, and how much is needed?

Use only detergent specifically designed for dishwashers — do not use hand dishwashing products. With soft water, 1 tablespoon (15 ml) of detergent will clean most loads; 3 tablespoons (45 ml) completely fills the detergent dispenser. The correct amount varies based on water hardness and soil level, with hard water and heavy soil requiring up to 3 tablespoons (45 ml) for the Heavy and Normal cycles.