Grains for each gallon is how your water hardness is measured. You'll see the abbreviation for this (GPG) in relation to the maximum hardness removal selection for every water softener. The higher the GPG, the upper the grain capacity you will want. Use the right salt within the water softener. https://plumbingsalinasca32098.affiliatblogger.com/82095324/not-known-facts-about-water-leak-detection