Hubei Province, Xiangyang City, pig farming base oxidation pond project. The oxidation pond has a capacity of 47,000 cubic meters, lined with a single-layer 2.0mm geotextile membrane for seepage prevention. After the geotextile membrane is laid and welded, a seepage membrane integrity test is conducted using the electric spark testing method. Four leakage points with joint damage were found, which were then repaired by a welding technician and passed the re-test.