They are the magic red ruby slippers of carpet cleaning. And about as effective.
I'll sell you one reluctantly, but only if it is to keep you as a happy Bridgepoint customer.
Seriously, as extremely skeptical as I am over this product, people who i trust have sworn it has helped rare situations where no other explanation was readily apparent.
What is missing from all the sales and "technical" literature that accompanies these products is a credible scientific explanation of its operting principles. Mind you, they all offer explanations, just none that are based on established science. Instead they all present a new arena of science based presenting alteration of chemical properties of non-magnetic minerals with a magnetic field without a basis involving scientific method of review of the steps of repeatable observation, hypothesis testing and prediction, offering only anecdotes.