water is so hard hardness of the water should be reduced hardness of water hardness in the water cause scale to build up hardness hardness of water grains of hardness is off the charts at 18-22 grains water is so hard Explanation of Water Hardness hardness http://www.fcwa.org/water/hardness.htm this list water is so hard https://www.fcwa.org/water/hardness.htm fcwa.org R the hardness count water is so hard hardness of the water