Here’s a rough rule of thumb for your average American home:
- Very hard water (10+ grains): 1.5 to 2 bags per month.
- Moderately hard (5–10 grains): 1 bag per month.
- Soft water or low usage: 1 bag every 6–8 weeks.
But here’s the kicker: your actual mileage will vary based on how often you flush, shower, and water the lawn. I once went through three bags in a month because my son discovered bubble baths. He’s 14. The water was practically a foam party. So, track your usage for two months, then adjust. You’ll become a salt-counting savant.
The “Check the Salt Level” Dance
Once a week, lift the lid of your brine tank and look inside. If the salt is above the water line, you’re golden. If it’s below, and you see floating chunks, you need a new bag. But do not just dump salt on top of old clumps—that’s how you get a “salt mushroom” that won’t dissolve. Break up any crust with a broom handle. Yes, a broom handle. It’s weirdly satisfying.
And please, for the love of all that is bubbly, don’t use table salt. It has iodine and anti-caking agents that will turn your softener into a science experiment gone wrong. Use specifically designed water softener salt—pellets, crystals, or blocks. You’re not running a chemistry lab; you’re trying to wash your socks without them feeling like sandpaper.
