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Do electrical devices which claim to soften water work?

There’s electrical devices sold through the press which you connect to an incoming domestic water pipe and for a small amount of electricity soften the water. What is happening? Why is the science not publicised? Why doesn’t everyone have this fitted?
Paul Myerscough from Berkshire (Age: 55+)

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One Response

  1. These devices do not soften the water but may reduce the amount of scale that attaches to heating elements.

    However, I would think carefully about whether you want to soften your water supply especially if you use this for drinking. There is a reasonable amount of evidence that for certain individuals hard water can play a protective role against heard disease. See:

    http://www.dwi.gov.uk/pubs/hardness/index.htm

    or

    http://news.bbc.co.uk/1/hi/health/3396141.stm

    or

    http://www.who.int/water_sanitation_health/gdwqrevision/cardiofullreport.pdf

    for more information

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