Na nepatingejau paieskot: If combined detergents with a salt component are used, salt can usually be omitted up to a water hardness of 21 dH (37 fH, 26 Clarke, 3.7 mmol/l). If the water hardness is over 21 dH, salt must be used. Switching off salt refill indicator/water softening system If the salt refill indicator 5 is impaired (e.g. when using combined detergents containing salt component), it can be switched off. Proceed as described under