Hardness is usually expressed in grains per gallon or ppm as calcium carbonate equivalent.
Water hardness grains to mg l.
For example if your water test shows 250 mg l hardness you actually have 14 62 grains per gallon.
20 mg l to grain per gallon 1 40314 grain per gallon.
10 mg l to grain per gallon 0 70157 grain per gallon.
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 total grains x 17 1 equals ppm hard 7 10 5 gpg total grains x 17 1 equals ppm extremely hard.
1 mg l to grain per gallon 0 07016 grain per gallon.
Water hardness levels are depicted in milligrams per liter mg l parts per million ppm or grains per gallon gpg.
Concentrations of cations in water are expressed in grains per gallon gpg or in milligrams per liter mg l.
Quick conversion chart of mg l to grain per gallon.
30 mg l to grain per gallon 2 10471 grain per gallon.
Hardness is caused by compounds of calcium and magnesium and by a variety of other metals.
Formula to measure no of grains to be removed.
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.
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.
The result is the water hardness expressed in grains per gallon.
The longer water is exposed to a certain stone the harder it will be.
If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1.
What is soft water.
Divide the ppm hardness value by 17 1 the conversion factor for ppm to gpg.
Also called clark degree in terms of an imperial gallon.
Grains per gallon is the business standard approach for talking about water hardness.
Mg l means milligrams per liter note.
Ppm and mg l are the same thing.
Work out 180 17 1 10 526.
Symptoms of hard water include.
Jumping mg l by 17 1 will change it to gpg.
Establish the hardness value for the water in mg l.
0 to 60 mg l milligrams per liter as calcium carbonate is classified as soft.
Enter the value into a calculator and then check that you have entered the value accurately.
And more than 180 mg l as very hard.
40 mg l to grain per gallon 2 80628 grain per gallon.
121 to 180 mg l as hard.
A grain of water hardness is comparable to 1 7000th of a pound.
This map uses ppm measures.
For example say you have a water hardness value of 180 ppm.
General guidelines for classification of waters are.
