Well Water Hardness Scale

This range signifies the grain capacity of most water softeners available on the market.

Well water hardness scale.

No of persons 75 gallons no of gpg mg lit iron total grains to be removed per day. 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. Water hardness can be measured in gpg or ppm but gpg is the most commonly used measurement. For example if your water test shows 250 mg l hardness you actually have 14 62 grains per gallon.

It takes 17 1 ppm to equal 1 gpg. Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects. Gas water heaters used 29 less energy to. Formula to measure no of grains to be removed.

Deposits buildup inside water pipes heaters and bathroom and kitchen fixtures. Those laundered in hard water ones are rough the result of rock encrustations embedded in the fibers spot dishes faucets sinks toilets cars in fact all surfaces with a microscopic film of limestone.