Methods of treatment
The VDI 2035 gives 4 different methods, each with different objectives, to choose from. Which method to use depends on factors such as the quality of the drinking water and the condition of your heating system. The expert can decide on the basis of these factors and the guideline values of the VDI 2035 which procedure is the best for you.
Calcium and magnesium ions are exchanged for sodium ions, which pose a much lower risk of stone formation. However, electrical conductivity and pH remain unchanged.
Demineralization removes any minerals and salts from the water. In the process, electrical conductivity is lowered, which prevents corrosion caused by electrolysis. However, it should be noted that completely desalinated water, comparable to a sponge, sucks salts and minerals out of the components. This nullifies the desired effect. The pH value is also changed by desalination. Inhibitors are used to counteract these effects.