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Our delivery:
- water treatment plants
- treatment cardridges
- water counter
- parts for connection
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Hardness bands in overview:
| lower than 7 °d
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hardness band 1
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soft
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lower than 1,25 mmol / l
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| 7-14 °d
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hardness band 2
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medium
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1,25 - 2,5 mmol / l
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| 14-21 °d
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hardness band 3
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hard
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2,5 - 3,75 mmol / l
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| more than 21 °d
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hardness band 4
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very hard
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more than 3,75 mmol / l
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°d = 1 mg CaO pro 100 ml water = 0,179 mmol / l
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