Zeolite used in zeolite softening process for the treatment of hard water gets exhausted after certain time of usage but can be regenerated by flushing it with

After sometime sodium zeolite is completely converted to calcium and magnesium zeolites so reactions stop. Then, 10% brine solution is passing through these calcium and magnesium salts which regenerate back sodium permutit which we can reuse to softening of hard water.