Smeg STO905 - Инструкция по эксплуатации - Страница 19

User instructions 

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4. Operating instructions 

Once the dishwasher has been correctly installed, prepare for use as 
follows: 

•

Adjust the water softening system; 

•

Add the regenerating salt; 

•

Add the rinse aid and detergent. 

4.1 Using the water softening system 

The amount of scale contained in the 
water (water hardness index) can cause 
whitish staining on the dry dishes, which 
tend to become dull over time.  
The dishwasher is equipped with an 
automatic softening system which uses 
a special regenerating salt to reduce the 
hardness of the water. 

The dishwasher is factory set for water hardness level 

3 

(average 

hardness 

41-60°dF 

– 

24-31°dH

).   

When using water of medium hardness, the regenerating salt container 
should be refilled after approximately 

20 washing cycles

. The salt 

container can hold approximately 

1.7 Kg

 of salt in grains. Some models 

are equipped with an optical no-salt indicator. In these models, the cap 
of the salt container contains a green float which descends as the salt 
concentration in the water drops. When the green float can no longer be 
seen through the transparent cap, the container must be topped up with 
regenerating salt. The container is situated at the bottom of the 
dishwasher. After removing the lower basket, unscrew the salt container 
cap by turning it anticlockwise and pour in the salt using the funnel 
supplied with the dishwasher. Before replacing the cap, remove any salt 
residues from around the opening. 

•

When using the dishwasher for the first time, in addition to the salt it 
is also necessary to add one litre of water to the container.

•

Each time the salt container is refilled, make sure that the cap is 
securely closed. The mixture of water and detergent must never 
penetrate the salt container, as this would compromise the operation 
of the regeneration system. In the event of this occurring, the 
warranty will be invalidated.

•

Only use regenerating salt specially formulated for domestic 
dishwashers. If using salt tablets, do not fill the container 
completely.