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Distillers produce almost pure water. A distiller consists of a tank in which the water is heated to bring it to a boil. Steam is produced, rises, and leaves most impurities behind. The steam enters condensing coils, where it is cooled and condensed back to water. The distilled water then goes into a storage tank and piped to a faucet.

A typical home unit produces less than one quart of water per hour. The cost of making distilled water is usually high depending upon the local electricity rate. Although the distiller has no moving parts, it is not maintenance free. Scale must be frequently removed from the boiling tank. Distillation removes all minerals including desirable ones but it may not remove those chemicals that come to a boil and evaporate along with the water. Distilled water tastes ‘flat’ to many people.

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