MajorTom
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- Nov 19, 2008
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I'm trying to wrap my head around water chemistry and profiles. Reading over Palmer's explanation and studying his nomograph, I can not figure out what EFFECTIVE water hardness is. The nomograph has a small note saying it is not the same as TOTAL hardness (CaCO3). But, no where can I find a definition of what EFFECTIVE Hardness is.
Looking at Palmer's spreadsheet I see that the Effective Hardness comes from Ca/1.4 + Mg/1.7. Where do these numbers(1.4 and 1.7) come from and what is the unit measure for Effective Hardness? I assume it is ppm, but I don't understand why the Ca and Mg are reduced by 1.4 and 1.7.
Any water geniuses out there care to help me?
Looking at Palmer's spreadsheet I see that the Effective Hardness comes from Ca/1.4 + Mg/1.7. Where do these numbers(1.4 and 1.7) come from and what is the unit measure for Effective Hardness? I assume it is ppm, but I don't understand why the Ca and Mg are reduced by 1.4 and 1.7.
Any water geniuses out there care to help me?