Install a water softener
Use a salt-free water conditioner
Use a reverse osmosis system for drinking water
Boil water to reduce temporary hardness
Add washing soda to laundry water
Use vinegar to remove mineral buildup
Descale faucets, showerheads, and appliances regularly
Clean kettles and coffee makers with citric acid or vinegar
Replace clogged showerheads and aerators
Test your water to determine hardness level
Contact your local water utility for treatment options
Use distilled water for appliances when possible