Even more could be saved if good outdoor water conservation is practiced for the lawn and garden. Install a low-flow showerhead that limits the flow from the shower to less than three gallons per minute. This is the single most effective conservation step that can be taken inside the home. Take short showers and install a cutoff valve, or turn the water off while washing and back on again only to rinse. Take a shower instead of a bath.
Showers use less water.
If a shower is not available, reduce the level of the water being used in the bathtub by one or two inches. When building a new home or remodeling a bathroom, install a new low-volume flush toilet that uses only 1.6 gallons per flush. Test toilets for leaks. Add a few drops of food coloring to the tank, but do not flush the toilet. If the color appears in the bowl in a few minutes, the toilet has a silent leak that needs to be repaired.