Duplex Water Softeners

Continuous Flow Water Softening

Softening is the process of removing dissolved calcium and magnesium salts that cause hardness in water. It is achieved either by adding chemicals that form insoluble precipitates or by ion exchange. Ion exchange is accomplished by passing the water through columns of a natural or synthetic resin that trades sodium ions for calcium and magnesium ions. Ion-exchange columns must eventually be regenerated by washing with a brine solution.

Advantages of Duplex Water Softeners

  • Innovative second tank quick connection simplifies installation
  • Duplex system ensures no system downtime as one vessel is in service at all times
  • Integrated bypassing, allows usage of hard water for manufacturing.


  • Where it is critical that softened water supply is uninterrupted
  • The industry renowned Fleck valve and an additional resin tank ensures continued softened water as one vessel is used whilst the other is being regenerated, ensuring no downtime.
  • With high capacities of up to 12.5 million mg total hardness between regeneration and simple maintenance, this range can satisfy the most demanding soft water requirements.

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