First things first: don’t even think about grabbing a box of Morton’s from the kitchen. Water softener salt is coarser, less refined, and often comes in different shapes—like pellets, crystals, or blocks.
Think of it as the heavy-lifting cousin of table salt. Table salt has additives to prevent clumping, which would actually gunk up your water softener system. This salt is pure enough to do its job without leaving a messy residue.