best answer > What level of hardness is considered hard water 2024?- QuesHub | Better Than Quora
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  • Harper Adams——Studied at Stanford University, Lives in Palo Alto, CA

    Scale deposits are a typical indicator of hard water.Degree of HardnessGrains per Gallon (gpg)ppm (or mg/L)Soft<1.0<17.0Slightly Hard1.0-3.517.1-60Moderately Hard3.5-7.060-120Hard7.0-10.5120-1801 more rowread more >>
    +119962023-04-24 21:31:07

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