Do ionized water yourself - is that possible?

Water ionizers are often sold very expensive. The operating principle is usually very simple with many devices and can be implemented with little effort and materials from the household itself. If you really want to use alkaline or acidic water, you will find instructions here.

Separation into anolyte and catholyte

In order to produce acidic active water (anolyte) and alkaline active water (catholyte), the ions dissolved in the water need only be separated from each other.

The added tap water is therefore split only in the positive and negative proportions. This requires a two-chamber principle. With the use of appropriately charged electrodes you can easily separate the shares.

Necessary material

  • Plastic cans with closure lid that closes as tightly as possible
  • alligator clips
  • Stainless steel electrodes or titanium electrode and stainless steel cathode; As a stainless steel electrode are also suitable pastry shapers, which are simply drawn.
  • Replacement for a membrane (impermeable to water) - this can be baking paper, parchment paper or sandwich paper
  • DC generator for 12 or 24 volts with a power of at least 800 mA


In the plastic box laterally a larger hole is cut, through which the electrode fits. The lid is provided with several holes, the sandwich paper attached below the lid. It should be about 1 cm overlooked.

The plastic box is placed in a bucket so that the opening for the electrode is on top. Then the bucket and the can are filled up with water, so that in both the water level is the same. Now, if one electrode is hung in the bucket and the other in the can, the ion separation begins at current flow.

After about 20 - 30 minutes, the pH values ​​have already changed significantly. This can be clearly visualized with test strips. The longer the process goes, the more acidic or alkaline the water in the containers becomes.

The health effect of alkaline water is highly controversial, for drinking it should not be used permanently.

Tips & Tricks

More powerful generators accelerate the process and produce more water. For safety, the bucket should be covered or closed as much as possible during the procedure.

Video Board: How to do it Yourself DIY and make a Water alkalinization ionization ionizer water sytem unit