Put a plastic bottle in your toilet tank. Your toilet can probably flush just as efficiently with less water than it now uses. To cut down water waste, put an inch or two of sand or pebbles in a plastic quart bottle to weigh it down. Fill the bottle with water and then put it in your toilet tank, safely away from the operating mechanisms. In an average home, the bottle may displace 10 gallons or more of water a day.
Bricks tend to disintegrate in the water and can damage plumbing.
Take shorter showers . Long, hot showers waste five to ten gallons of water every unneeded minute. Limit your showers to the time it takes to soap up, wash down and rinse off. Install water-saving shower heads or flow restrictors. Most shower heads put out five to ten gallons of water per.