Sizing Commercial Water Softeners

Making sure that your business gets the correct water softener for you needs

The main difference between domestic and commercial water softeners is their capacity. AIWSE members will work out how many litres of water per minute your facility needs plus of course how many hours of the day the unit will be expected to deliver soft water. This will also give the total daily capacity and determine how ofter the water softener will need to regenerate.


Regeneration is the process by which a water softener cleans itself out, ridding itself of all the hard minerals that it has taken out of your water and flushing them down the drain to start the softening process again. Every time a water softener regenerates, it uses salt.

During the regeneration process, soft water is not available. For this reason, the regeneration cycle generally takes place at night, when soft water isn’t needed. However, in some commercial applications where soft water needs to be available 24 hours a day, there may be multiple water softener units in place so that while one is regenerating, another can deliver soft water.

AIWSE members have various options in banking these units in multiples to give continuous operation for your facilties.

Other Considerations

Our members cover all types of commercial properties;

  • Food Production
  • Farms
  • Cooling Plants
  • Hotels
  • Bed and Breakfast
  • Schools
  • Rental Property
  • Factoriies
  • Office Blocks
  • Restaurants
  • Cafes

AIWSE members work with the very best suppliers and designers in the industry to find perfect solutions, delivering off the shelf or fully custom made water softeners. Your AIWSE company will arrange installation and more importantly on going servicing and maintenance.

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written by

Paul Webb

Has worked in water treatment, plumbing and construction throughout his career.
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