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According to the Water Quality Association, the hardness scale, measured in gpg of calcium carbonate, can be represented as follows: Less than 1 gpg is considered soft Between 1 and 3.5 gpg is considered slightly hard
The water hardness scale determines how hard your water is & what kind of water softener will solve your hardness problem. Learn more!
The internationally recognized water hardness scale recognizes 4 water hardness classes; from soft, moderately hard, hard, to very hard. By definition, water hardness is the total sum of molar concentrations of calcium ions (Ca 2+) and magnesium ions (Mg 2+).
The level of hardness is measured in grains per gallon (gpg) or milligrams per liter (mg/L). Water that registers between 0-1 gpg is considered soft; moderately hard water reads at 3.5-7 gpg; and any water with gpg over 7 is classified hard to very hard.
Soft water reduces the formation of rock-like hard water scale which encrusts water heaters, hot water pipes, shower heads, and water-using appliances. This scale can cause premature maintenance and failure. Elimination of hard water also provides substantial energy savings because scale acts as an insulator,
Find out which capacity you need here. Testing your water. After successfully testing your water to find out your hardness number, your result will fall somewhere on the hardness scale. Once you test your water and get your number, see where your water falls using the guide below:
The Culligan Medallist Series Water Softeners are tested and validated by WQA and certified by UL against ANSI/NSF Standard 44 for the effective reduction of calcium and magnesium (hardness) along with Barium and Radium 226/228*.
