Repair dripping faucets by replacing washers. If your faucet is dripping at the rate of one drop per second, you can expect to waste gallons per year, which will add to the cost of water and sewer utilities, or strain your septic system. Check for toilet tank leaks by adding food coloring to the tank. If the toilet is leaking, color will appear within minutes. Check the toilet for worn out, corroded or bent parts.
Most replacement parts are inexpensive, readily available and easily installed.
Avoid flushing the toilet unnecessarily. Dispose of tissues and other such waste in the trash rather than the toilet. Take shorter showers. Some units are available that allow you to cut off the flow without adjusting the water temperature knobs. Use the minimum amount of water needed for a bath by closing the drain first and filling the tub only half full.