Well Water Hardness Scale

For example if your water test shows 250 mg l hardness you actually have 14 62 grains per gallon.

Well water hardness scale. Water hardness map of the united states water hardness table of classifications and links to more information about water softening and effects. A grain of water hardness is comparable to 1 7000th of a pound. It takes 17 1 ppm to equal 1 gpg. 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.

Deposits buildup inside water pipes heaters and bathroom and kitchen fixtures. 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. If hardness is in mg l or ppm convert it into gpg by dividing it with 17 1. This range signifies the grain capacity of most water softeners available on the market.

Formula to measure no of grains to be removed. 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.