Water passing through the mineral tank loses positively charged calcium and magnesium ions to negatively charged plastic beads. The brine tank holds a salt solution that flushes the mineral tank, replacing calcium and magnesium ions with sodium. A meter at the top of the mineral tank regulates recharging cycles. The valve assembly routes water flow for each phase of the regeneration cycle.
- The backwash phase removes dirt from the mineral tank.
- Recharging the mineral tank with sodium from the brine solution displaces calcium and magnesium, which is then washed down the drain.
- The final phase rinses the mineral tank with freshwater and loads the brine tank so it’s ready for the next cycle.