For example if your water test shows 250 mg l hardness you actually have 14 62 grains per gallon.
Well water hardness scale.
This range signifies the grain capacity of most water softeners available on the market.
If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1.
Water systems using groundwater as a source are concerned with water hardness since as water moves through soil and rock it dissolves small amounts of naturally occurring minerals and carries them into the groundwater supply water is a great solvent for calcium and magnesium so if the minerals are present in the soil around a water supply well hard water may be delivered to homes.
It takes 17 1 ppm to equal 1 gpg.
Deposits buildup inside water pipes heaters and bathroom and kitchen fixtures.
Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects.
No of persons 75 gallons no of gpg mg lit iron total grains to be removed per day.
A grain of water hardness is comparable to 1 7000th of a pound.
Gas water heaters used 29 less energy to.
Formula to measure no of grains to be removed.