water softener

noun

any of a group of substances that when added to water containing calcium and magnesium ions cause the ions to precipitate or change their usual properties: used in the purification of water for the laboratory, and for giving water more efficient sudsing ability with soap.

water softener

any substance that lessens the hardness of water, usually by precipitating or absorbing calcium and magnesium ions
a tank, apparatus, or chemical plant that is used to filter or treat water to remove chemicals that cause hardness

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I reached out to the company that installed our water softener and purification system.

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A combination water softener/carbon system or salt-free water conditioner/carbon system is typically recommended for homes supplied by city water.

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"Homeowners can — and should — take preventative measures by using a water softener to preserve their belongings."

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This is done by adding phosphate to keep the minerals suspended in the water or by installing an ion exchange water softener.

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It is used in the manufacture of glass, in some detergents and as a water softener.

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