How often should you check and refill water softener salt?

These tasks are more about efficiency, longevity, and comfort. Not a huge deal if you miss one, but it pays off over time.

Staying on schedule matters beyond the repair bill: a consistent maintenance record is one of the factors in a home's Roots Home Health Score, and well-kept homes typically sell faster and closer to asking price.

How to do it

A softener swaps hardness minerals for sodium using salt from the brine tank. When the salt runs low, softening stops and hardness returns to every tap and appliance.

1. Open the brine tank lid and check the salt level; keep it at least half full and above the water line.
2. Add the salt type your unit uses (pellets or crystals), breaking up any bridged crust with a broom handle.
3. Confirm the salt is dissolving into brine and not forming a hard dome above the water.
4. Note how fast you go through salt; a sudden change signals a setting or valve issue.

Alternatives & optional extras

• Salt bridges (a hard crust with a gap underneath) fool you into thinking there's plenty; break them up when you refill.
• Potassium chloride is a sodium-free alternative if someone's on a low-sodium diet.

Time: 10 minutes · Typical cost: $8–$25 per bag of salt

What you'll need

• Water softener salt (pellets)

If you skip it

Run the brine tank dry and softening stops, so scale returns to fixtures, water heaters, and appliances.

Other water softener maintenance

• Clean water softener brine tank — once a year

Related systems to keep on schedule

• Sump pump — start with: test sump pump operation, every 3 months
• Water filtration system — start with: replace water filtration cartridges, every 6 months
• Septic system — start with: pump septic tank, every 3 years
• Well water system — start with: test well water quality, once a year