Water Hardness Classification1)Milligrams per Liter (mg/L)Grains per U.S. Gallon (gpg) Soft 0 - 60 0 - 3.5 Moderate 61 - 120 3.5 - 7 Hard 121 - 180 7 - 10.5 Very Hard > 180 > 10.5 1) United States Geological Su
The Hardness titration function allows you to set the hardness unit preference to either grains of hardness or ppm CaCO . The selected unit is also used in the LSI Calculator function. System Validation & Calibration Myron L® Company's POOLPRO provides a fast, precise, easy-to-use metho...
Magnesium:Also responsible for providing hardness to the water, magnesium can provide a sour/bitter flavor to the beer in amounts of 30 ppm or more. It has a laxative effect in much larger amounts. Malt provides all of the magnesium required for yeast health, so it is not required as an...