Regular, natural water, when filtered by an alkaline pitcher, is safe. This is because the pitcher contains ions that add beneficial minerals like calcium and magnesium to the water. These minerals dissolve in the water, and when you drink the water, your body benefits from their goodness. When using a machine that breaks down the water's composition, investigate further to find out whether the electrolysis process adds any minerals to the filtered water. If not, you're not getting any mineral benefits and have no reason to keep using the machine because empty, high pH water is of no benefit to your body.