How To Use Deionization At Home And Which Of The Three Types Is Best For Potable Water

Posted on: 2 September 2015

Deionization is one of the more modern methods of purifying water. It removes the mineral ions (not the minerals themselves) from the water and creates a purer form of water. Although you can drink water made from co-current deionization and counter-current deionization, the healthiest and best choice is mixed bed deionization. Here is how you can install a deionization filter system at home and utilize the mixed bed method for the purest, potable water you can get from your tap.

Differences in Deionization Methods

Co-current deionization runs both the water and the purifying agents through a filter together. The counter-current method forces the water either up or down a filter pipe while forcing the purification agents against the water from the opposite direction. While more expensive, the counter-current process produces a higher quality of potable water that has less of the contaminants in it than co-current deionization. 

Mixed bed deionization utilizes a 50/50 mixture of two purification agents to purify water. The water is forced through a pipe or filtration tube where the mixed bed filter sits. After the water passes through this filter of mixed purifying agents, then demineralization agents are added to the newly purified water. With the addition of the demineralization agents, the last traces of contaminants are removed. This water is now the purest and healthiest water.

Regardless of the type of deionization used in your chosen filtration system, none of these methods require a tank for residential use. 

Finding and Installing a Mixed Bed Deionization System in Your Home

The water filtration systems for home use are not all made equally. In order to get a proper mixed bed deionization system installed in your home, you need to find a system that utilizes a specific type of filter. Your deionization filters should contain a 50/50 split of cation and ion resin, the necessary purification agents for the ultimate in pure water. If your filters do not list their construction or purification agents such that you can easily determine this 50/50 split, ask an installation technician what is in the filters. If the system you want to install does not utilize this specific mix of cation and ion resin, you can still get purified water, but it will not be water at its most pure.

The water purification company you hire to install a water purification system should be able to answer the questions you have about the type of deionization used in their systems. If the technicians cannot answer your questions, you should probably avoid installing a deionization system until you find a company and technician who can answer you. Usually, the best water purification companies post on their website exactly what type of deionization system they promote and what types of filters you can use with their systems.