Skip to main content Skip to search Skip to main navigation

Residual hardness measurement in water treatment for demineralised process water

Water hardness is a measure of the content of calcium and magnesium ions in water. Water hardness is usually measured in German degrees of hardness (°dH).

High water hardness can lead to limescale deposits forming in pipes, appliances and household devices such as kettles, washing machines and coffee machines. It can also cause detergents and soaps to be less effective as they react with the calcium and magnesium ions in the water.

On the other hand, too low a water hardness (soft water) can also be problematic as it can cause the water to become more corrosive and wear out metals and pipes more quickly.

Residual hardness monitoring in hospitals and clinics

Residual hardness monitoring in the reprocessing of medical devices in clinics is crucial to ensure the efficiency of cleaning and disinfection processes. By measuring residual hardness using a water hardness measuring device, deposits can be reduced and the service life of devices and medical products can be extended. Water hardness measurement therefore also plays an important role in process water treatment