Install a low-flow toilet or tank water saving device and save as much as five gallons of water a day.
Install a low-flow showerhead and save as much as 86 gallons of water a day.
Install a sink aerator and save eight gallons of water a day.
Turn off the faucet while you brush your teeth and save four to 10 gallons of water a day.
Fix your leaky faucet and save as much as seven gallons of water a day.
Only run your washing machine and dishwasher when they are full. You can save as much as 15 gallons per load for the dishwasher and 55 gallons per load for the washing machine.
Saving Water Outdoors
Don't overwater your lawn. As a general rule, lawns only need watering every 5 to 7 days in the summer and every 10 to 14 days in the winter. A hearty rain eliminates the need for watering for as long as two weeks.
Raise the lawn mower blade to at least three inches. A lawn cut higher encourages grass roots to grow deeper, shades the root system and holds soil moisture better than a closely-clipped lawn.
Avoid overfertilizing your lawn. The application of fertilizers increases the need for water. Apply fertilizers which contain slow-release, water-insoluble forms of nitrogen.
Mulch to retain moisture in the soil. Mulching also helps to control weeds that compete with plants for water.
Plant native and/or drought-tolerant grasses, ground covers, shrubs and trees. Once established, they do not need to be watered as frequently and they usually will survive a dry period without any watering. Group plants together based on similar water needs.
If you have a swimming pool, consider a new water-saving pool filter. A single backflushing with a traditional filter uses from 180 to 250 gallons, or more.