There is no perfect “every X days” schedule. Life is chaotic. You’ll forget. That’s okay. The key is to make checking salt a habit, like brushing your teeth but with more brine.
Set a phone reminder: “Salty check, bro.” Or tie it to something fun—like every time you binge a show, peek at the tank.
You are now a water softener whisperer. Go forth. Add salt. Save your pipes. And maybe high-five your shiny faucets.