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The function of Ion exchange water is to remove hardness commonly known as limescale from water. Removal of scale forming calcium and magnesium ions from hard water prevents scale deposition.

A standard water softener has 3 major components:

  • Resin Vessel
  • Brine tank to hold salt
  • Valve Controller

Resin vessels contain cation exchange resin. During normal service the multivalent calcium (Ca++) and magnesium (Mg++) ions displace the sodium (Na+) ions. When most of the sodium ions have been replaced by calcium and magnesium ions, the resin is exhausted & must be regenerated.

Softener is regenerated with concentrated salt solution which displaces the calcium and magnesium ions which are flushed to drain. Resin is regenerated and the softener is able to remove hardness ions again.

Greencastle Technology can supply various types of softeners, simplex, duplex and triplex depending on hardness and volume of water to be treated.