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Feedwater Limited • Tarran Way West • Moreton • Wirral • CH46 4TU • United Kingdom
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Hard Water creates scale, wastes valuable energy and can wreck your boilers and hot water heaters.
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Hard Water

Hard water contains significant levels of naturally occurring calcium and magnesium salts. Historically, the name comes from the laundering trade, where the water in some places allows you to easily raise a lather, but in other places, it is much harder to do so.

When hard water is boiled, the dissolved calcium and magnesium salts are forced to solidify in a process called "precipitation". These precipitated salts form a very thin layer on the metal surfaces, and these thin layers build up over time to make a strong, stratified coating which:

  • Insulates the heater element and reduces its efficiency, which increases the cost of heating the water
  • Increases pumping costs, because the bore of the water pipes gets narrower as the scale builds up
  • Causes hot-spots on the heating element, often leading to catastrophic failure

Please visit our water softeners page to find out more.

What does a Hard Water Softener do?

Hard Water is removed by a Water SoftenerThe most effective way to deal with hardness in water is to replace it with something which has no such effect, and this is what a water softener does. The water softener contains a special form of "ion exchange" resin, which exchanges "soft" sodium ions for "hard" calcium and magnesium ions. This removes the water's scale-forming properties and it can then be safely boiled without creating precipitated hardness salts and all those problems associated with hard water.

Once the ion exchange resin has been exhausted, it can be easily and economically regenerated using a strong brine solution. During this process, the accumulated hardness salts are rinsed harmlessly to drain and the softener is ready to start again.

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