How to Measure Water Hardness - water hardness test kit guide
30/07/2012 · It takes 17.1 PPM to equal 1 GPG. If a test for hard water is measured in parts per million or milligrams per liter you can take the total hardness level and divide it by 17.1 to get hardness in grains per gallon. For example if your water test shows 250 mg/L hardness you actually have 14.62 grains per gallon.
Issues related to hard water. When hard water makes its way through the mains and into our homes for cooking, cleaning, washing and heating is when problems can arise. Millions of people in the UK receive hard water through the mains water supply with London having particularly large areas with hard water.
How to Measure Water Hardness | Pelican Water
Boiler Water Treatment Guidelines; Columbia Boiler Co
Why Measure Hardness? In general, hard water forms solid deposits comprised of mainly calcium and magnesium salts and can damage equipment, while soft water may be corrosive and therefore, it is important measuring and knowing levels of hardness in your process water to maintain the delicate balance between scaling and corrosivity.
Water hardness is measured in "grains" per gallon, in milligrams of calcium (Ca) per liter, or water hardness may be expressed in ppm - parts per million, and also in German Degrees of Hardness (dH) [which we drop here as this is for fish tanks].