Limescale Prevention

According to the British Water Society, “hard water is supplied to 60% of homes in the UK” (‘A Consumers‘ Guide to Water Softening - a proven answer to hard water’, July 2005), equating to approximately 15 million households in England & Wales.

From household steam mops to healthcare steam generating equipment, over time in hard water areas, a layer of limescale will form on the appliance. Therefore the use of soft water will prevent this bacteria build-up, as well as prolonging appliance efficiency and life.

This genuine problem requires a solution, ideally one that is proactive rather than reactive, for example, descaling.

Prevention is better than cure!

Water Treatment

Demineralised Water
Demineralised, or demin water, also often referred to as purified or deionised water, is high quality "pure" water. It is produced by passing non-pure water through an ion exchange resin bed. As a result this filters out any unwanted mineral salts and impurities, like sodium or chloride. Softening the water to a level that limescale will not be formed.

We are leading suppliers of high-quality laboratory Grade 3 ISO 3696 compliant demineralised water into the personal and animal healthcare sectors. Used in autoclaves, ultrasonic baths, dental equipment and all steam generating devices.

All our water is:

  • Double Filtered
  • UV Treated
  • Has a conductivity of ≤ 5µs (Micro Siemens)
  • Has a Bacteria Count of <100cfu/ml
  • Complies with BS EN ISO3696:1995
  • Complies with BS EN285:2015

Water Softener
Water softener allows household water to become demineralised (soft water) stopping any limescale possibilities arising. In the 1980s, we were the first company to offer a product to householders that demineralised tap water.

Based on an ion exchange resin system with a built-in exhaustion colour indicator, we initially launched our product via Sunbeam, who then became Oster. In the 1990s we supplied a Tap Water Demineraliser, alongside a Steam Iron Cleaner and a Safety Liquid Descaler for Rowenta and Groupe Seb.  By the 2000s, Home-tek International came on board for a Water Softener to sell alongside their steam mops and irons.

Today we produce for many companies under many different brands all in the knowledge that our product is a tried and tested lightweight solution (only weighing it at 75g) that generates up to 10 litres of demineralised water, safe for use in all household steam generating appliances.

limescale prevention descaler
limescale water hardness map

Hard, Medium and Soft Water

What is Water hardness?

When water falls as rain, it's "soft" and free of minerals.

It picks up naturally occurring minerals, such as calcium and magnesium, as it passes through rock, sand and soil. This causes the water to become harder depending on the minerals it is passing through.

Mineral salts fall broadly into two different categories. Positively charged ions such as calcium and magnesium known as "cations". Negatively charged ions such as supplicate and bicarbonate known as "anions". Calcium and magnesium make up the bulk of the water hardness. Therefore precipitate out as calcium and magnesium carbonate to form the limescale, commonly known as 'scale'.

Effects of Limescale

Over time a layer of limescale will form on the heating elements and pipe work in steam generating appliances. Although this often seems hard and impervious it is highly porous becoming the ideal harbour for bacteria.

This coating dramatically reduces the efficiency of the hot plates and heating elements which as a result could lead to overheating and possible failure.

Limescale deposits can cause a restriction or blockage in small apertures and may produce excessive wear to valves, seals and pump components.