Hello. To begin with, I think you should pay attention to the testimony of your water meter. If you do not use water, and the water meter still shows the flow of water, this may mean that you have a broken pipe. In addition, there is a Camera Inspection of Drains. With which you can find even a barely noticeable leak. But for this you need to turn to professional plumbers who have all the necessary tools.
Hello. To begin with, I think you should pay attention to the testimony of your water meter. If you do not use water, and the water meter still shows the flow of water, this may mean that you have a broken pipe. In addition, there is a Camera Inspection of Drains. With which you can find even a barely noticeable leak. But for this you need to turn to professional plumbers who have all the necessary tools.