All our cartridges filter out limescale.
Calcium is a mineral with recognised health benefits that is not considered a pollutant.
Many people still ask how limescale removal/reduction works. The simple definition of water hardness is the amount of calcium and magnesium dissolved in water. Hard water has a high content of dissolved minerals. When hard water is heated, for example in a domestic water heater, solid deposits of calcium carbonate can form.
Basically, there are two methods to avoid limescale:
A) Remove calcium and magnesium ions from the water, so that calcium and magnesium carbonates do not form.
B) Prevent calcium and magnesium ions from forming calcium and magnesium carbonates.
Method A: Most water softeners and jugs
Softeners that use, for example, ion exchange resins, exchange calcium ions for sodium ions. This is why the water becomes salty. Softeners usually separate calcium and magnesium ions as waste water.
Method B: TAPPWater
Our patented limescale inhibitor forms a complex with inorganic contaminants and prevents them from forming hard scale, stains, etc. It forms a protective layer of insoluble mineral limescale on coffee pots, kettles, water jugs, etc.
On the positive side, calcium and magnesium are not reduced and the water does not taste salty. On the negative side, there may still be some white grains/bubbles in the water due to the calcium and magnesium ions.