Water Pal creates vortexing electromagnetic fields that cause changes in the water molecule. Vortexing causes the water molecules to be agitated aggressively and become treated. The treated water molecule will hold minerals in solution for as much as 3 or 4 months. If the water is boiled, or exposed to microwaves, the minerals may settle to the bottom of the water container. Water heaters DO NOT cause change in the treated water; the water is able to maintains its beneficial characteristics.