Puresep Water Softeners use the “ion exchange” method to reduce the amount of scale forming salts such as calcium and magnesium from feed water to prevent downstream scaling and accelerated corrosion of process lines of equipment. Scale forming salts are commonly soluble and have a tendency to precipitate on to contact surfaces in the form of carbonates, sulphates and hydroxides.

We supply an extensive and comprehensive range of Water Softening Plant.

The EcoSave – Probably the most efficient softener system on the market:EcoSave 3 Web

  • Delivers softened water to your system no questions asked
  • Impressive from the word go
  • Uses 50% less water
  • Uses 80% less salt
  • Designed specifically for improved performance and reduced costs

Marstons have installed an EcoSave to replace an exisiting softener.  With a pay back of less than 2 years they are looking at savings of £15,000 per year.

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The Process

A standard water softener works by allowing hard water to filter downwards through a bed of ion exchange resin. The ion exchange resin attracts the calcium and magnesium ions (hardness) and replaces them with sodium ions which are less problematic for water systems and will not cause scale build-up. Once the ion exchange resins are saturated with hardness, the regeneration sequence on the water softener begins.

The regeneration sequence starts with the backwash cycle which reverses the flow of the water to pass upwards through the ion exchange resin bed. This frees the beads of the ion exchange resin. Ion exchange resins are then saturated with a brine solution which releases the calcium and magnesium ions and replaces them with sodium ions. Both the calcium and magnesium ions flow along with the water and excess brine solution to drain. Using a down flow flush removes excess brine left on the ion exchange resin beds. The softener is then back into service mode.

The size of water softener required varies according to the flow-rate and the hardness of the water. Our team of expert engineers can provide assistance with this.



Envirogen Water Technologies