The method of water leakage detection of underground water pipes: the first step, first unscrew all the angle valves of the water outlet, then seal each water outlet with the plug wrapped with the raw material tape, and close the switch of the household control main water supply valve (must be tightly closed) , otherwise the data is inaccurate, such as water seepage of the main valve, it will be handled differently), finally connect the press to test the pressure, and be sure to drain the air in the water pipe when the water is tested (just put the water in the high water outlet for a while) can). When a certain pressure is reached, we only need to wait quietly, observe whether the pressure gauge has dropped the pressure, and check that there is no leakage at each connection to be qualified. In the second step, if the water pipe test is not leaking, there are macular water marks on the floor seam. This is because when the home is renovating the floor tiles, the decoration workers infiltrate a large amount of waste water into the cement mortar under the floor tiles when grinding the floor tiles. The bottom part penetrates, and when a certain amount of water accumulates, it seeps out from the cracks of the floor tiles. The treatment method is as follows: chisel the floor tiles with macular water marks, and dry the water in the cement mortar at high temperature. The third step, if the water pipe test proves to be leaking, you can only dig up the floor with macular water marks, clean the cement mortar under the floor, and then observe the water infiltrating from that direction, and finally confirm the direction of the water seepage, just from that Check the directions one by one to make repairs.
