Not all salt is created equal. You can’t just dump table salt in there—it has anti-caking agents that will gum up the works. Use solar salt or evaporated salt pellets. They look like tiny, edible ice cubes, but don’t taste them. Seriously, don’t.
Some people think salt is bad for the environment, and it can be—if you’re dumping it in a river. But modern softeners use “on-demand” recharging, which uses 50% less salt than old models. The EPA actually says soft water can reduce home energy use by 15%. Your planet, your wallet—win-win.