Miele PW 6163 Operating And Installation Instructions page 29

Water hardness
level
I
II
III
IV
Check with your local water supplier if you do not know the water
hardness level in your area.
Water proper- Total hardness
ties
Soft
Medium
Hard
Very hard
Washing
Total hardness
(mmol/l)
0–1.3
1.3–2.5 7–14
2.5–3.8 14–21
> 3.8 > 21
(°d)
0–7
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