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Settings
41
Water hardness Calcium content
mg/lCa
2+
or ppm (mgCa
2+
/l)
Setting
°dH mmol/l
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
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