Ion exchange resins may be safely stored for prolonged periods of time in areas where the ambient temperature is between 4-28°C (41-80°F).
Following these precautions, there should be little or no concern regarding the shelf life of the resins being stored. Physical damage of ion exchange resins due to dehydration may occur in cases of extreme moisture loss during storage.
In rare cases, it may be necessary to store ion exchange resins in their less stable forms. In these instances, it is important that precautions be taken to assure that the ion exchange resins are properly stored in a hydrated condition at temperatures, which rarely exceed 40°C (104°F) for prolonged periods of time.
During the shipment to and storage in areas where temperatures drop below 0°C (32°F), storage precautions should be taken to avoid subjecting ion exchange resins to repeated freezing-thawing conditions. Although a few freeze-thaw cycles are generally harmless, repeated freezing-thawing of ion exchange resins, regardless of the forms in which they are supplied, could bring about physical attrition of the ion exchange resin by physically breaking the resin beads. Generally recommended Rules of Thumb are that un-regenerated resins be used within five years, regenerated resins used within one year, and low TOC grade resins within a month or two.
Common Causes of DI Resin Failure
The lifespan of DI resin is relatively short, with optimal output typically lasting only 1 to 2 minutes. It is crucial to carefully follow instructions to understand the resin's functionality and make an informed decision about investing in such systems.
When DI resin fails to produce water with zero or low Total Dissolved Solids (TDS), there are several potential causes. Let's explore some common reasons behind this issue: