A common remark regarding the taste of Ionized Water is that it tastes smoother than conventional water. This is because of the molecule cluster size and shape. It also does not fill you up and bloat you the way conventional water can do if you drink a lot of it at once.
The Antioxidant (hydroxyl ions) will last approximately 18-24 hours. The higher pH (alkaline properties) will last approximately 1-2 weeks. The smaller molecule cluster size will last approximately 1-3 months.
Water is run over positive and negative electrodes, which ionizes the water. The ionized water is separated into alkaline water and acidic water as it passes through membranes. This is accomplished by repelling the water, now that it has been "charged" into positive and negative ions.