Miele G 1830 Operating Instructions Manual page 17

You can check the water hardness level
measured by the water softener sensor
in the display (see "Settings menu J,
Water hardness").
If the water in your area is very soft
and constantly lower than
0.7 mmol/l (4 °d) you do not need
to add dishwasher salt. The
"Insufficient salt" message will
appear the first time you switch the
dishwasher on. It will go out
automatically once the sensor has
detected that the water is softer than
0.7 mmol/l.
,
Inadvertently filling the salt
reservoir with powder or liquid
dishwasher detergent always leads
to serious damage to the water
softener. Make sure you have picked
up the correct packet of dishwasher
salt before filling the salt reservoir!
,
Only use special coarse grained
dishwasher salt for reactivation. Do
not use other salts such as cooking
salt, agricultural grade or gritting
salt. These may contain insoluble
additives which can impair the
functioning of the water softener.
Before using for the first time
^ When filling the salt reservoir only
open the door half-way to ensure
that all the salt gets into the reservoir.
^ Press the button on the lid of the salt
reservoir in the direction of the arrow
until the flap springs open.
^ Lift up the funnel.
17