Ppm and mg l are the same thing.
Water hardness grains vs ppm.
One grain per gallon gpg is equivalent to 17 14 parts per million 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.
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.
Also called clark degree in terms of an imperial gallon.
Water hardness can be measured in gpg or ppm but gpg is the most commonly used measurement.
Cleaning agents do not react well with hard water and often a distinct oily white crust is left behind after cleaning.
A grain of water hardness is comparable to 1 7000th of a pound.
The grain per gallon gpg is a unit of water hardness defined as 1 grain 64 8 milligrams of calcium carbonate dissolved in 1 us gallon of water 3 785412 l it translates into 1 part in about 58 000 parts of water or 17 1 parts per million ppm.
Jumping mg l by 17 1 will change it to gpg.
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.
Grains per gallon is the business standard approach for talking about water hardness.
If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1.
For example say you have a water hardness value of 180 ppm.
Formula to measure no of grains to be removed.
Typically water that contains less than 1 grain per gallon is.
Different agencies and organizations may use slightly different classifications when discussing water hardness.
When looking at measurements of hardness what is the difference between grains per gallon gpg and parts per million ppm.
Work out 180 17 1 10 526.
For example let s say your water hardness is 15 gpg and you have 2 ppm of iron.
Water that is classified as hard has 150 300 ppm of minerals dissolved in it.
Ppm means parts per million mg l means milligrams per liter note.
Hard water usually requires water softening equipment to make it usable for a home.
Hard water has a noticeably unpleasant flavor but is still potable.
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.
The total hardness you need to set will be 25 on your softener to account for the iron levels.
