[Cerium]

What about magnetic water cleaners?

Anything crackpot is an attempt to usurp the way things are with the way people want them to be. Free energy, electric thrusters, magnetic health bracelets, one weird trick for clean teeth... these all apply to other professions but since they obviously don't work it is up to the physicist to ignore? explain?

Physics is the belief in sanity in our confusing mess of a work. It is often an appeal to something simpler. What's the difference between a crackpot and a physicist? Physicists do science and get repeatable results.

[Zardoz84]

There is some effects of a strong magnetic field on a current of water over aragonite and other calcium minerals, on a way that make less probable to a pipe get obstructed. However, this requires :

- a strong magnetic field in some special configuration. - a water current flow, like you can find on a pipe.

These "magnetic water cleaners" that are only a mug with a magnet, don't match these two requisites. Ie, are a fraud.