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Calcium content:
miligram per liter (mg/L)
gram per liter (g/L)
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Magnesium content:
miligram per liter (mg/L)
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gram per mililiter (g/ml)
parts per million (ppm)
pound per US gallon (lbs/US gal)
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Water hardness:
miligram per liter (mg/L)
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gram per mililiter (g/ml)
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pound per US gallon (lbs/US gal)
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