Three tons of water leaked in a month and can’t be found

If you cannot find the leak, you should use the following methods

1. First, confirm whether the water pipe is really leaking, plug both ends, and find a water pipe to test the pressure. Machine, try adding some pressure to the machine, and then wait for half an hour to see if the pressure is significantly reduced. If so, it means there is indeed a leak. Use this method to confirm which section of the water pipe is leaking. After confirmation, if possible, replace the leaking section of water pipe. If not, you can lay another one for replacement and discard the original one. Repairing is not recommended because the pressure inside the water pipe is high. If repaired, it will not last long and will leak;

2. Ground listening method

When determined by pre-positioning method After the leaking pipe section is identified, an electronic amplified leak detector is used to listen to the leaking point of the underground pipe on the ground and accurately locate it. The listening method is to listen and compare point by point along the direction of the leaking pipe at a certain distance. When the ground pickup is close to the leakage point, the detected water leakage sound will be stronger, reaching the maximum above the leakage point.

3. Valve plug listening method

The valve plug falling method is to use a leak listening rod or an electronic amplified leak detector to directly listen to the exposed points of the pipeline (such as fire inspection, valves and exposed pipes, etc.) to listen to the leaking sound produced by the leaking point, thereby identifying the leaking pipe and narrowing the scope of water leakage detection. The frequency of the sound of water leakage from metal pipes is generally between 300 and 2500Hz, while the frequency of the sound of water leakage from non-metallic pipes is between 100 and 700Hz. The closer the listening point is to the leakage point, the louder the leakage sound will be; conversely, the smaller the sound will be.

4. Find a professional technical service company that does underground pipeline leakage detection and leakage detection. The company has advanced leakage related instruments, leakage detectors, ultrasonic leakage detectors and other pipeline leakage detection equipment, and has rich experience. Leak detection engineer. It can quickly and accurately detect and find the location of leaking points buried in underground water pipes without excavation.