Every system needs salt. You can’t just set it and forget it unless you enjoy “orange hair” and “crunchy underwear.” Check the salt level once a month. If your brine tank looks empty, your water is basically back to being a thug.
Best Water Softener System For Wells at Alan Fortune blog
Also, clean the sediment filter every six months. I know, it sounds like a chore, but that gunk you rinse out? That’s what would be in your coffee. You’re welcome.
Pro tip: Buy a water test kit before you buy anything. Don’t just guess. Guessing leads to buying the wrong system, which leads to crying in the plumbing aisle of Home Depot. I’ve seen it happen. It’s not pretty.