Find a spot near your main water line, ideally before the water heater but after the meter. You want it inside your garage or basement, not outside where it’ll freeze. It also needs a drain nearby for the backwash cycle—think floor drain or utility sink.
Make sure there’s an electrical outlet within reach. Water softeners need power to run their little brains. And leave yourself some wiggle room; you don’t want to wrestle the tank into a closet the size of a shoebox.
Residential Water Softener Installation Diagram Guide