Magnetic water treatment

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Magnetic water treatment is proposed as a method of water softening.

The tools for magnetic water treatment are often sold by home distributors, who have made dubious claims of effectiveness.[1] Proponents of the method assert that powerful magnets sandwiched over a water line, so the water passes through the magnetic field, will treat the water without the need for chemical softening agents. The claim is usually made that the shapes of the mineral molecules in hard water are sufficiently modified to eliminate the build-up of calcium and lime, and also remove limescale already present in the system.

Sellers of the technology also say that treatment of water with magnets can treat blood circulation, prevent or cure disease, increase the strength of concrete, and prevent tooth decay[1][2][3].

Vendors have pictures and testimonials to corroborate their claims, but there are several scientific studies that refute the effectiveness of the method.[1] Consumer Reports carried out a two-year experiment with two water heaters; the end result showed no evidence of any benefit.

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  1. ^ a b c Powell, Mike. Magnetic Water and Fuel Treatment: Myth, Magic, or Mainstream Science?. Skeptical Inquirer. Retrieved on Oct. 26, 2007.
  2. ^ Watt DL, Rosenfelder C, Sutton CD. "The effect of oral irrigation with a magnetic water treatment device on plaque and calculus" J Clin Periodontol 20(5), 1993 May, pp314-7. PMID 8501270
  3. ^ water oral irrigator (Hydro Floss) on plaque, calculus and gingival health" J Clin Periodontol 25(4), 1998 Apr, pp316-21. PMID 9565283