Water Softener Maintenance
A water softener is one of the lowest-maintenance appliances in a home — but "low" isn't "none". A few minutes of attention each month keeps the resin working, prevents the most common failures, and easily stretches the unit's life past 15 years. Here's what to do and how often.
Keep the brine tank fed (and bridge-free)
The single most important habit is keeping salt in the brine tank — ideally above the water line and at least a third full. The enemy here is the salt bridge: a hard crust that forms across the tank and leaves an air gap, so the salt above never reaches the water below. When that happens the softener runs through regenerations without actually making brine, and your water quietly goes hard again. Use clean pellet or solar salt rather than cheap rock salt, keep the area dry, and periodically push a broom handle into the salt to break up any crust before it sets.
Watch your salt and hardness
Note roughly how much salt you add and how often. A sudden change — using far more or far less than usual — is an early warning of a stuck valve, a leaking brine float, or a programming error. Once a month it's worth running a quick hardness test on the softened water: it should read close to zero grains. If hardness is creeping back, recheck your programmed hardness value and look for a salt bridge.
Clean what fouls over time
Roughly once a year, add a resin-bed cleaner (sold as "iron-out" or softener cleaner) to recover capacity lost to iron and organics — this is especially important on well water. Every couple of years, or whenever you see sludge, fully drain and rinse the brine tank. If your water carries sediment, a sediment pre-filter ahead of the softener protects the resin and the valve's injector, which is the part most likely to clog.