Water Deionization 101

July 25, 2017

Years ago, high purity water was used only in limited applications. Today, deionized (or “DI”) high purity water has become an essential ingredient in hundreds of applications. Just a few include the following: Medical offices Laboratories Pharmaceutical companies Cosmetics companies Large aquariums,fish tanks,and reefkeeping facilities Electronics manufacturing plants Food processing plants Plating and anodizing And even the final rinse at the local car wash! DI or deionized water is simply…


Alternative to DI exchange tanks

June 21, 2013

Service exchange (SDI) or portable exchange (PEDI) DI tank users may have a better option.  SDI and PEDI systems allow for the use of a service provider’s DI tanks for the purpose of high purity water production.  These tanks are used across a wide variety of industries for humidifier feed, washing/rinsing, lab water, aquatics/reefkeeping, chemical formulation, research, science and analytical applications, just to name a few.  For these users, water…


High Purity Deionized (DI) Water

June 13, 2013

I often receive a phone call with the following request:  “I need a price for a DI water system.”   Simple enough, right!  Well, not nearly so.  Sometimes to the frustration of the caller, I come back with a list of questions that the caller is not prepared to answer.  Not unlike any other water treatment application or technology, deionization or DI, has its inherent limitations, based on the water supply…


De-ionization 101

August 30, 2012

Deionization, commonly called DI, is complete demineralization of a water supply.  Specifically, the term deionization is used with respect to the removal of the cations and anions from the water.  In some cases, the water is passed through two separate columns of cation and anion resin.  These days, most deionization is accomplished with the use of mixed-bed DI resin. DI water is similar to distilled water, and while it produces…