THE WATER HARDNESS TABLE
German degrees
(°dH)
French degrees
(°fH)
mmol/l
Clarke degrees
Water softener
level
47 -50
84 - 90
8.4 - 9.0
58 - 63
10
43 - 46
76 - 83
7.6 - 8.3
53 - 57
9
37 - 42
65 - 75
6.5 - 7.5
46 - 52
8
29 - 36
51 - 64
5.1 - 6.4
36 - 45
7
23 - 28
40 - 50
4.0 - 5.0
28 - 35
6
19 - 22
33 - 39
3.3 - 3.9
23 - 27
5
1)
15 - 18
26 - 32
2.6 - 3.2
18 - 22
4
11 - 14
19 - 25
1.9 - 2.5
13 - 17
3
4 - 10
7 - 18
0.7 - 1.8
5 - 12
2
<4
<7
<0.7
< 5
1
2)
1) Factory setting
2) Do not use salt at this level.
Adjusting the water softener
5x
6x
The programme marker must be aligned with .
• Make sure that the appliance is in programme selection mode.
• Press and hold and simultaneously turn the knob counterclockwise until the programme marker is
aligned with .
• Release when Delay and start to flash.
7
