Salt
Water Softener Salt
Pellets, solar crystals, rust-remover blends and potassium chloride, with bag size, form and the purity each maker states.
Pellets dissolve evenly and are the safe choice for most brine tanks; solar crystals work well in two-tank units and are less prone to bridging in some tanks. Rust-remover blends add a cleaning agent for iron; potassium chloride replaces sodium but costs more and takes a higher salt setting.
Use about the same form every refill, keep the salt level below the top of the tank, and break up any crust (a salt bridge) that forms above the water.
What is your water doing?
The usual choice for most softeners
Evaporated salt pellets are the purest and leave the least residue in the brine tank.
A lower-cost salt for a clean brine tank
Solar salt crystals cost less per bag and work in most softeners, with a little more insoluble residue than pellets.
You'd rather not add sodium
Potassium chloride replaces salt in most softeners; it costs more and the maker may call for a higher salt setting.
Check before you order
- Watch for bridging. A hard crust can form over a hollow in the tank. If the level never drops, break it up with a broom handle.
Every softener salt on one grid
| Image | Product | Type | Bag size | Form | Purity | Price seen |
|---|---|---|---|---|---|---|
 | Morton F114980000G 40 lb Potassium Chloride Softener Pellets Morton | Potassium chloride | 40 lb | Potassium Chloride | Not stated | Check current price |
 | Compass Minerals 38240 40 lb Potassium Chloride Softener Pellets Compass Minerals | Potassium chloride | 40 lb | Not stated | Not stated | Check current price |
 | Diamond Crystal 40 lb Potassium Chloride Softener Pellets Diamond Crystal | Potassium chloride | 40 lb | Crystals | 99.6% | Check current price |
 | Diamond Crystal Iron Fighter 40 lb Rust-Defense Softener Salt Diamond Crystal | Rust-remover salt | 40 lb | Pellets | 99.6% | Check current price |
 | Morton Pure & Natural Solar Salt Crystals Morton | Solar salt crystals | 40 lb | pellets | Not stated | Check current price |
 | Morton Pure & Natural 18.14 kg Solar Salt Crystals Morton | Solar salt crystals | 40 lb | crystals | Not stated | Check current price |
 | Diamond Crystal Sun Gems 804275 40 lb Solar Salt Crystals Diamond Crystal | Solar salt crystals | 40 lb | Crystals | Not stated | Check current price |
 | Diamond Crystal Solar Naturals 50 lb Solar Salt Crystals Diamond Crystal | Solar salt crystals | 50 lb | Crystals | 99.6% | Check current price |
 | Snow Shield 50 lb Solar Salt Crystals Snow Shield | Solar salt crystals | 50 lb | pellets | 99.6% | Check current price |
 | Diamond Crystal Sun Gems CA40EC 50 lb Solar Salt Crystals Diamond Crystal | Solar salt crystals | 50 lb | crystals | 99.6% | Check current price |
 | Home and Country USA SS50 50 lb Solar Salt Crystals Home and Country USA | Solar salt crystals | 50 lb | crystals | Not stated | Check current price |
 | Morton Pure & Natural 40 lb Solar Salt Crystals Morton | Solar salt crystals | 40 lb | pellets | Not stated | Check current price |
 | Diamond Crystal Solar Naturals 40 lb Solar Salt Crystals Diamond Crystal | Solar salt crystals | 40 lb | Crystals | 99.6% | Check current price |
 | Morton Clean & Protect 1501011 18.14 kg Softener Salt Pellets Morton | Salt pellets | 40 lb | pellets | Not stated | Check current price |
 | BWT 8 kg Softener Salt Pellets BWT | Salt pellets | Not stated | Not stated | Not stated | Check current price |
 | Diamond Crystal Bright & Soft 50 lb Softener Salt Pellets Diamond Crystal | Salt pellets | 50 lb | Pellets | 99.8% | Check current price |
 | Diamond Crystal Bright & Soft Softener Salt Pellets Diamond Crystal | Salt pellets | Not stated | pellets | 99.8% | Check current price |
 | Clean & Protect 1500 80 lb Softener Salt Pellets Clean | Salt pellets | 80 lb | Not stated | Not stated | Check current price |
 | Morton 1499 25 lb Softener Salt Pellets Morton | Salt pellets | 25 lb | pellets | Not stated | Check current price |
 | Morton Clean & Protect 40 lb Softener Salt Pellets Morton | Salt pellets | 40 lb | pellets | Not stated | Check current price |
 | Morton 40 lb Softener Salt Pellets Morton | Salt pellets | 40 lb | Pellets | Not stated | Check current price |
 | Morton Clean & Protect MWSP19 19 lb Softener Salt Pellets Morton | Salt pellets | Not stated | Pellets | Not stated | Check current price |
 | Diamond Crystal 100012423 50 lb Softener Salt Pellets Diamond Crystal | Salt pellets | 50 lb | Not stated | Not stated | Check current price |
 | Diamond Crystal Bright & Soft 40 lb Softener Salt Pellets Diamond Crystal | Salt pellets | 40 lb | Pellets | 99.8% | Check current price |
 | Diamond Crystal Sun Gems 50 lb Softener Salt Pellets Diamond Crystal | Salt pellets | 50 lb | Crystals | 99.6% | Check current price |
 | Diamond Crystal Sun Gems 40 lb Softener Salt Pellets Diamond Crystal | Salt pellets | 40 lb | Crystals | 99.6% | Check current price |
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Figures are the makers' own, quoted with their conditions on each product page. Prices change; each product page links to the current price.