GMS provides mixed bed units to suit all of our customers requirements. Cation and Anion resins are combined in a MSRL vessel to produce ultra pure water. Usually a mixed bed unit contains strong acid Cation (SAC) resin and strong base Anion (SBA) resins combined to a ratio of approximately 40% Cation resin to 60% Anion resin. GMS can install mixed bed units after a standard Reverse Osmosis, to produce ultra high quality water. The Cation resins in our mixed bed units are of a higher specific gravity and settle at the bottom of the vessel whilst the Anion resin will automatically float to the top.