A water treatment device includes a control module communicating with a feed line; an energy pipe communicating with the control module; a light wave pipe assembly communicating with the energy pipe; and magnetizing pipe communicating with the light wave pipe assembly through the second manifold then with an exit line. The light wave pipe assembly communicates with the light wave generator so that the wave guide tube grants the light wave energy to the water liquid. The magnetic energy of magnets of the magnetizing pipe magnetizes the water liquid. Furthermore, with the use of multiple loops which refine molecules of the water liquid, the energy of the water liquid increases to allow the water liquid to be easily absorbed by human body.