First clue: your soap turns into a sad, scummy film instead of a bubbly cloud. If you feel like you’re scrubbing with a greasy crayon, you probably have hard water.
Second clue: white, chalky deposits (called scale) on your faucets, coffee maker, or showerhead. It looks like a snowflake threw up on your chrome.
Third clue: your laundry comes out stiff and dingy, even after washing. Hard water just clings to your clothes like a stage-five clinger.
