Client has us out today because she just paid an extremely high water bill and doesn’t know where the extra water usage could be coming from. She has no dripping faucets or running toilets in the home and also had her crawl space checked for leaks and there were none. Arrived on site and found the meter box full of water, pumped the water out and you can hear the leak on her side of the meter, underground. Presented options and today we went with just a repair to get the leak to stop. I dug the meter box out and found that the gasket for the black flow preventer had failed and is allowing water to leak out. Replaced the gasket with a gasket from a meter nipple and pressurized the system with no leaks, not putting dirt back as it was covering the meter. Water is on with no leaks.