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The calcium content is given on the
label of the bottle in mg/l Ca
2+
(mg Ca
/l).
Do not use carbonated water.
The hardness level is set to 21.8 gpg
(21°dH) by default.
Water hardness
°dH
gpg
1
1
2
2
3
3
4
4
5
5
6
6
7
7
8
8
9
9
10
10
11
11
12
12
13
14
14
15
15
16
16
17
17
18
18
19
19
20
20
21
21
22
22
23
23
24
48
2+
or ppm
Calcium
Setting
content
2+
mg/l Ca
or
2+
ppm (mg Ca
/l)
7
14
21
29
36
43
50
57
64
71
79
86
93
100
107
114
121
129
136
143
150
157
164
Water hardness
°dH
24
25
26
27
28
29
30
1
31
2
32
3
33
4
34
5
35
6
36
7
37–45
8
46–60
9
61–70
10
Tip: If your water hardness is
11
> 21.8 gpg (21°dH), we recommend
12
using bottled drinking water instead
13
(< 150 mg/l Ca
coffee machine will need to be
14
descaled less often and there will be
15
less impact on the environment
16
because less descaling agent will be
used.
17
18
19
20
21
22
23
Calcium
content
gpg
2+
mg/l Ca
or
ppm (mg Ca
25
171
26
179
27
186
28
193
29
200
30
207
31
214
32
221
33
229
34
236
35
243
36
250
37
257
38–47
258–321
48–62
322–429
63–73
430–500
2+
). This will mean your
Setting
2+
/l)
24
25
26
27
28
29
30
31
32
33
34
35
36
37–45
46–60
61–70
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