The most neglected issue in water softening systems is setting the regeneration and maintenance interval correctly. Leaving the settings unchanged for many years after the unit is installed leads to wasted salt and water and to resin fatigue earlier than expected.
Three variables determine the interval: the hardness of the water, the amount of water consumed daily and the resin volume in the unit. As hardness rises, the regeneration frequency required for the same amount of water increases. That is why the settings must be reviewed at facilities whose mains supply changes or that switch to well water.
Time-controlled units regenerate at fixed intervals; on days with low consumption, they waste salt. Volumetric units, on the other hand, regenerate only when necessary because they measure the water passing through the meter. In businesses with variable consumption, a volumetric system noticeably lowers the cost of salt.
Maintenance is not just about topping up salt. Checking the brine tank for salt bridging, cleaning the injector and valves, disinfecting the resin bed once a year and periodically measuring the hardness of the product water should also be part of the plan. A softening line that is monitored regularly extends the life of boilers and heat exchangers, saving far more than its own maintenance costs.
