When the magnet with the north pole and the south pole of is mounted outside the piping, an electric current induced according to Faraday’s law of electromagnetic induction flows along the piping wall.
By enhancing its action through further conduction of weak current, ARIORES softens and dissolves the scale adhered to inner wall of piping by electrolysis, Lorentz force(F=qBV) generated by electromagnetic induction acts in the direction to remove and disperse the scale and then removes the adhered scale.