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How is hard water “softened”?

April 26, 2017hard water softened

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How is hard water “softened”?

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Household water softeners typically use salt to reduce hardness in water. As water passes through the unit, sodium atoms in the salt replace calcium and magnesium atoms. Over time, however, the salt-bearing unit must be changed or recharged to remain effective.

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To fully soften water the minerals (calcium and magnesium) which cause hardness must be removed. These minerals are removed by ion-exchange. Fitting a domestic ion-exchange water softener is the only process specifically designed to completely remove all hardness from your mains water supply. The softened water will also gradually remove existing scale from pipework, bathroom fittings and heating elements.