How Ionizers Work

How Does a Water Ionizer Work?

Explore filtration, electrolysis, pH, and oxidation-reduction potential in a home water ionizer.

ionizer under a kitchen sink with faucet

How a water ionizer works

  1. 1Tap water in
  2. 2UltraWater filtration
  3. 3Electrolysis on platinum-coated titanium plates
  4. 4Alkaline water from the spout; acidic water to the drain

What is a water ionizer?

A water ionizer is an electrical appliance that connects to your water supply. Using UltraWater filtration technology and the process of electrolysis, the ionizer transforms ordinary tap water into clean alkaline, ionized, and hydrogen rich UltraWater.

A special attachment re-directs tap water out of the faucet, through the tubing, and into the water ionizer.

This is where the magic happens...

Inside the machine, the water is first filtered through AlkaViva's UltraWater filtration technology. The filtered water then passes into a chamber equipped with platinum-coated titanium electrodes. This is where the electrolysis takes place.

During the process of electrolysis, cations (positive ions) gather at the negative electrodes, creating reduced water (alkaline water). Anions (negative ions) gather at the positive electrodes, creating oxidized water (acidic water).

The reduced, ionized water comes out of the top spout of the ionizer and the oxidized water comes out of a separate hose leading into the sink.

Reduced water is what you use for drinking or cooking. Oxidized water can be used for washing hands, food, or kitchen utensils.

Cations, positive ions, gather at the negative electrodes to create cathodic water (reduced water). Anions, negatively charged ions, gather at the positive electrode to make anodic water (oxidized water). The reduced water comes out of the faucet, and the oxidized water comes out of a separate hose leading into the sink. You can use reduced water for drinking or cooking. The oxidation potential of oxidized water can be relevant to household cleaning of hands, food, or kitchen utensils.

Redox Potential Comparison

Compare these measurements of these three types of water: tap water before electrolysis, the reduced (alkaline) water made with a water ionizer, and the oxidized (acidic) water.

Water TypeRedox potentialpHWhat it means
Tap Water+400 – +500mV7Slight oxidation potential
Reduced Water-250 to -550mV9Strong reduction potential. Hydroxide ions increase alkalinity and concentrate essential minerals. Contains a surplus of hydrogen molecules.
Oxidized Water+700 to +800mV4Strong oxidation potential, associated with a shortage of electrons.

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