Lowering water bills can be achieved by investing in an energy-efficient water heater, such as a tankless heater that can save up to 0 per year. You can also reduce hot water usage by adjusting the temperature on your water heater and fixing any leaks. Installing low-flow toilets or adding aerators to faucets can save both water and money. Upgrading to an Energy Star dishwasher can save up to 300 gallons of water per year, while an Energy Star washing machine can save up to 6 gallons of water per load. Consider replacing your showerhead with a WaterSense-labeled one to save 2,700 gallons of water annually.