Settings
24
Water hardness
Contact your local water supplier to find
out your local water hardness range if
necessary.
The degree of hardness can be set
between 0.2mmol/l and 12.5mmol/l
(1°dH and 70°dH).
If you are using bottled drinking water,
e.g. mineral water, use non-carbonated
water. Select settings according to the
calcium content. The calcium content is
given on the label of the bottle in mg/l
Ca
2+
or ppm (mg Ca
2+
/l).
Water hardness Calcium
content
mg/lCa
2+
or
ppm (mgCa
2+
/l)
Setting
°dH mmol/l
1 0.2 7 1°
2 0.4 14 2°
3 0.5 21 3°
4 0.7 29 4°
5 0.9 36 5°
6 1.1 43 6°
7 1.3 50 7°
8 1.4 57 8°
9 1.6 64 9°
10 1.9 71 10°
11 2.0 79 11°
12 2.2 86 12°
13 2.3 93 13°
14 2.5 100 14°
15 2.7 107 15°
16 2.9 114 16°
17 3.1 121 17°
Water hardness Calcium
content
mg/lCa
2+
or
ppm (mgCa
2+
/l)
Setting
°dH mmol/l
18 3.2 129 18°
19 3.4 136 19°
20 3.6 143 20°
21 3.8 150 21°
22 4.0 157 22°
23 4.1 164 23°
24 4.3 171 24°
25 4.5 179 25°
26 4.7 186 26°
27 4.9 193 27°
28 5.0 200 28°
29 5.2 207 29°
30 5.4 214 30°
31 5.6 221 31°
32 5.8 229 32°
33 5.9 236 33°
34 6.1 243 34°
35 6.3 250 35°
36 6.5 257 36°
37-45 6.6-8.0 258–321 37°–45°
46-60 8.2-10.7 322–429 46°–60°
61-70 10.9-12.5 430–500 61°–70°