Dishwasher rinse aid versus salt: symbols and refilling
Rinse aid and dishwasher softening salt serve different purposes. Some models have no salt reservoir; check the manual first.
Do not pour rinse aid or dishwasher salt into the wrong compartment to fix spots on glasses. Bosch explains that rinse aid helps water drain and drying, while special salt regenerates the softener in models equipped with one. Symbols and needs vary by model and water hardness.