What does water softening mean in practice?
Sodium softener removes calcium and magnesium, replacing them with sodium, therefore it reduces scale but does not reduce the total dissolved salts.
When does it matter?
The device must have the correct capacity, salt dose and rinse flow; incorrectly set, it may leak hardness or consume excessive salt.
Which solutions are related to it?
Selection is based on hardness, wear and peak flow, and operation is controlled by testing before and after the device.