Water Hardness Calculator
|The water hardness is using American degree equivalent to mg/L. |
Water hardness(mg/L)＝Ca(mg/L)×2.497 ＋ Mg(mg/L)×4.118
Classification of hard water and soft water is based on WQA (Water Quality Asociation).
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|Explanation of Water Hardness (Fairfax Water)|