What Kind of Salt is Best for a Water Softener?


There are three typical formats of salt that are appropriate for most water softeners. Each comes with its own unique set of features and functions. The choice that you make comes down to the particular set of conditions that you’re working under.

1. Salt Pellets

There are two distinct types of salt pellets: evaporated and solar. Evaporated salts are the most pure form of salt, but they are also the most expensive. Salt purity is beneficial, as salt is completely dissolvable and other additives are not. The less pure your salt choice, the more buildup of insoluble materials that have to be cleaned out of your water softener.

Solar pellets are also relatively pure, typically 99.6% salt. These pellets are created by putting sea water through an evaporation process. They are more soluble than other forms of water softener salt, but you may need to refill your softener more often if you’re dealing with particularly hard water.

2. Rock Salt

Rock salt is very similar to the salt that you sprinkle on your driveway in the winter. While it is the cheapest option, it can contain strikingly high amounts of calcium sulfate. This insoluble matter will build up in the bottom of your water softener, meaning more maintenance and cleaning than you’d deal with when using pellets.

3. Block Salt

Block salt can be a real headache. It’s heavy, unwieldy, and you have to have a particularly full brine tank to accommodate the full height of the block.

At Speedy Salt, we think the best kind of salt for a water softener is the salt you don’t have to think about. We bring you high-quality Texas pellet salt every month, without the fuss or delivery fees you’ll get from other big-name brands. You’ll never have to worry about your salt supply running low or going empty. We help you put convenient home-maintenance in the palm of your hands.

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