Description
Aquatic Life RO Buddie Deionization Filter
STAGE 4 – COLOR CHANGING RESIN (DEIONIZATION) Replace filter when resin changes color. After the water is filtered by the membrane, there is usually a small amount of total dissolved solids (TDS) left in the water. In certain nondrinking water applications, it is important to remove the remaining TDS from the water. This is accomplished by filtering the water through a resin that is charged with cation and anion resins (H+ and OH-). As the resin absorbs the TDS, it will change color. When all resin has changed color, it is time to replace the DI filter.
