It usually takes about one to two days. When the closed water test is carried out on the pipeline, it is generally necessary to close the water for about one to two days. During the closed water period, the water injection level needs to be measured and recorded in detail, and then it is judged whether there is leakage in the pipeline according to the drop of the water level. Phenomenon.
If the water level drop is within the specified value range, it means that the pipeline is installed correctly and there is no leakage. If the water level drop is not within the specified value range, it means that the pipeline installation is wrong or unqualified, and there is leakage. , you need to reinstall, or find the leak location to adjust.