Well Water Hardness Scale

No of persons 75 gallons no of gpg mg lit iron total grains to be removed per day.

Well water hardness scale.

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. Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects. If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1. Deposits buildup inside water pipes heaters and bathroom and kitchen fixtures.

Water hardness can be measured in gpg or ppm but gpg is the most commonly used measurement. 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.

This range signifies the grain capacity of most water softeners available on the market. Formula to measure no of grains to be removed.