Water Hardness Grains Per Gallon Vs Ppm

Grains per gallon is the business standard approach for talking about water hardness.

Water hardness grains per gallon vs ppm.

Simply put multiplying a gpg hardness reading by 17 1 will tell you what the hardness is in ppm and conversely dividing a ppm hardness reading by 17 1 will yield the. For example say you have a water hardness value of 180 ppm. Water hardness conversion table ppm mmol l mg l french degrees german degrees grains per gallon degrees clark 1 is 0 0099 1 0 1 0 056 0 058 0 07. Treated or softened water 0 1 gpg total grains x 17 1 equals ppm slightly hard 1 2 gpg total grains x 17 1 equals ppm medium hard 3 7 gpg.

Also called clark degree in terms of an imperial gallon. Formula to measure no of grains to be removed. Both units of measurement refer to the amount of hardness in the water tested. The result is the water hardness expressed in grains per gallon.

A grain of water hardness is comparable to 1 7000th of a pound. Work out 180 17 1 10 526. What is soft water. Jumping mg l by 17 1 will change it to gpg.

When looking at measurements of hardness what is the difference between grains per gallon gpg and parts per million ppm. Water hardness can be measured in gpg or ppm but gpg is the most commonly used measurement. This range signifies the grain capacity of most water softeners available on the market. Divide the ppm hardness value by 17 1 the conversion factor for ppm to gpg.

Different agencies and organizations may use slightly different classifications when discussing water hardness. Typically water that contains less than 1 grain per gallon is. Ppm and mg l are the same thing. How many grains per gallon or whatever.

Hardness is usually expressed in grains per gallon or ppm as calcium carbonate equivalent. If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1. Soft water is defined by american national standards nsf ansi 44 and nsf ansi 330 as water containing 1 grain of hardness per gallon or 17 1 mg l hardness. Gpg means grains per gallon ppm means parts per million mg l means milligrams per liter note.