I know, I know. You’re standing in the grocery aisle, staring at a bag of Morton’s that costs three bucks and a bag of “water softener salt” that’s somehow forty dollars. Your brain screams, “It’s all sodium chloride, you idiot!” But your brain is wrong, and it should be punished.
Here’s the dirty secret: table salt is a chaos agent. It contains anti-caking agents (like yellow prussiate of soda—yes, that’s a real thing, and no, it doesn’t involve medieval torture) that turn your softener’s brine tank into a cement factory. You’ll end up with a crusty, rock-hard salt bridge that laughs at your attempts to regenerate.
Think of it this way: using table salt in your softener is like feeding a vegan a steak. It’s just not going to end well.
The Types: A Tale of Three Salts
Solar salt is the laid-back surfer dude of the salt world. It comes from evaporated seawater and looks like giant, chunky crystals. It’s cheap, it’s messy (you’ll find salt dust in places you didn’t know you had), but it works. The downside? It leaves a lot of insoluble gunk—basically mud—in your tank, so you’ll need to clean that sucker out every six months or face the consequences.
Morton Water Softener Salt Review. Is It Worth The Buy? - Filtersmart
Evaporated salt is the pristine, Instagram-model version. It’s 99.9% pure, made by dissolving salt deposits deep underground and then re-crystallizing them into perfect little pellets. It costs more, but it dissolves like a dream. Your softener will purr like a happy cat, and you’ll only need to clean the tank once a year, if that. For the love of plumbers, if you have a high-end softener, this is your only choice.
Rock salt is the wild card. It’s mined directly from the earth, looks like gravel, and is about as pure as a politician’s promise. It’s cheap, but it’s also full of calcium and magnesium—the very things you’re trying to remove from your water. So you’re basically pumping dirt back into your pipes. Smart move, genius.
