water softener treatment

Technical Update: Water Softeners & Closed Loop Systems

Adam Griffith’s Monthly Technical Update

Base exchange water softeners provide a crucial function in water treatment by removing potentially harmful Calcium & Magnesium ions from the water, protecting assets from scale build-up which would reduce the efficiency of the system. However, not every water system requires, or would benefit from, a water softener being installed.

Closed loop systems, by design, have a very low water make-up, with a good system seeing <5% system volume per year; If hard water is not being fed into a system, because it does not make up frequently, there would be little reason to install a water softener. A water meter installed on the supply to the make up unit will indicate the amount of system fill.

Water softeners are often a source of bacteria proliferation when not maintained correctly, regular regeneration and resin bed disinfections are key to maintaining high quality softened water.

Chemical programmes that contain Phosphates, Hydro-X & Hydro-X Super, do require soft water, therefore in hard water areas a small cabinet water softener is typically installed. If a system treated with Hydro-X/Super is regularly fed with hard water, calcium phosphate will precipitate, this will settle in low flow areas if not removed by means of filtration.

May Be Recommended

Not Typically Recommended

Installation of a water softener

1. Hard water areas with high levels of make-up
2. Chemical programme including Phosphates (Hydro-X & Hydro-X Super)
3. History of poor maintenance and scale build up.

1. Naturally Soft water areas, geographical variances
2. Systems with very little to no make-up (water meters are key)
3. Chilled water systems generally

water softeners closed loop systems