Water softening is the removal of calcium, magnesium, and certain other metal cations in hard water. The resulting soft water is more compatible with soap and extends the lifetime of plumbing..
Water softening is usually achieved using lime softening or ion-exchange resins
water softening is necessary for boilers that produce steam to avoid lime deposition inside pipes or occurring corrosion to the pipes metal
Usually water #softener works by exchanging calcium, magnesium ions with sodium ions
Hard water fills the tank . As it passes through the #resin the hard water ions are attracted to the resin . by the time the water gets to the bottom of the tank it is soft .
to wash off hard #water minerals from the risen brine water is injected into the softener
The result : we have exchanged dissolved calcium carbonate that deposit in the pipes with sodium chloride