A water softener is an agent that is used to soften water by removing minerals that cause hard water.
Water softening is an important process, because when water is hard, it can clog pipes and soap will dissolve in it less easily. Water softening can prevent these negative effects.
Furthermore, hard water causes a higher risk of lime scale deposits in household water systems. Due to this lime scale build-up, pipes are blocked and the efficiency of hot boilers and tanks is reduced. This increases the cost of domestic water heating by about 15 to 20 percent.