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The main signs of hard water: Limescale. It appears on household appliances, but most obviously it can be noticed on a teapot. The scale flakes are not only an unpleasant addition to boiled water but also a harmful compound for...
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Purification of hard water Water hardness is it's characteristic due to the presence of salts in the complex (mainly magnesium and calcium salts). It is measured in milligram-equivalent per liter (mg-eqv/l). The higher the water hardness, the less technical means...
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