Faulty meters or problems with the piping from the water main to your meter will be fixed by your water utility department at no charge to you. Problems with underground pipes between your meter and your house may require a plumber. Lowering the water pressure of the entire house is another step toward cutting down on wasted water. This adjustment can be made by installing a pressure reducing valve near the main water meter. Most homes do not need more than 50 pounds of pressure per square inch.
Excessive pressure causes needless wear and tear on plumbing fittings and encourages water waste.
This could save more than water if you ever have a water pipe break in your home. By the way, it is a good idea to turn the water off every time you go on vacation. A leak while you are away could both do a lot of damage and waste a lot of water.