The basic requirements for the construction of a pond are that the bottom of the pond is flat, the embankment is strong and strong, and it is loam. Impermeable high-strength polyethylene film is different from ordinary film. It is resistant to additional radiation and long-term immersion in water will not change the water quality. It can effectively protect the water in the pond from pollution and improve the water quality. It can effectively increase the yield and survival rate of fish and shrimp. Can effectively control the occurrence of diseases. Easy to lay and shorten the production cycle.

After a large number of aquaculture cases, it was discovered that the water in the pond was separated from the soil by laying on the bottom of the pond to prevent water seepage. This is an ideal solution to use a high-strength polyethylene impermeable membrane as the bottom lining of the pond to prevent water leakage. The production technology of the impermeable membrane breaks through the textile principle and is the knowledge of modern science. It is processed by randomly arranging and spinning short fibers or filaments to form a network structure.

Do not wear hard-soled shoes when walking on the welded impermeable membrane. During transportation, the metal legs of the rickshaw should be covered with a rubber-like soft material; when the film meets the required stone-free, dense clay layer, the car can be allowed to go straight. After the installation operation and the welding of the impermeable geomembrane, there should be no nails or iron palms on the shoes, otherwise the impermeable membrane will be damaged. It is strictly forbidden to smoke or use various ignition sources on site.

For the shear and peel test of welds, the horizontal joints should be less than 1.5 m away from the slope and have high pressure. Only the film is torn and will not damage the weld. Necessary protective measures should be taken according to the conditions of the base layer under the film. Heavy and hard objects should not fall from a high place and directly impact the pad. Put a membrane (impermeable geomembrane or geotextile) on the mat, and don't let the car bend sharply.