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    what is 660 mg/L water hardness converted to grains per gallon?

    How can I convert 660 mg/L water hardness to gpg (grains per gallon) in order to set my water softner?

    0  Views: 560 Answers: 1 Posted: 13 years ago
    Big Gimpy

    The water hardness test kit I use gives the answer as mg/L CaCO3, I need to convert to GPG.

    1 Answer

    See how to convert here > http://www.ehow.com/how_8126392_convert-water-hardness-mgl-gpg.html



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