Leakage of fish ponds directly affects the survival and growth of fish, and fish farmers can seize the causes during the Yutang period and renovate the different conditions of leakage. Several major methods for preventing the leakage of fish ponds are described below for your reference.
Some dredging and deep excavation methods Some fish ponds have been in disrepair for a long time, and the bottom sludge has accumulated deeper. The pool slope has collapsed and leaked. Once the water in the drought pool evaporates, it can easily cause an oxygen-depleted flooding pond (fish floating head phenomenon). For such shallow fish ponds, reasonable plans should be made after fishing and dredging should be conducted so that the normal water depth can be maintained at more than 2 meters.
Mud plugging method For general leaking fish ponds, after clearing the pond, a layer of finely divided clay is laid on the bottom of the pond, and then water is injected to make the clay evenly spread on the bottom of the pool so as to play the role of protecting the bottom of the pond, or Add appropriate amount of water to stir the clay into mud and allow it to infiltrate into the gap between the bottom soil particles to reduce water permeability.
For clay ponds with large sediment content, the pool water is drained first, and muddy debris is removed. After 15-20 days of drying, a layer of 15-20 cm thick clay is evenly laid on the bottom of the pool and the slope. , and then mechanically compacted or compacted. In addition, some grass species can also be sown on the slope to implement turf slope protection.
Rolling bottom method For old ponds or newly excavated ponds with larger areas, the ground may be mechanically rolled according to the area and degree of infiltration, or the bottom of the pool may be loosely shaved, and a suitable amount of clay or quicklime may be added. Stir well before rolling.
Brick ash lining method For fish ponds with serious leakage, the pool water should be drained first, dredged and dried for several days, and then leveled and bottomed. The slope is lined with stucco bricks, and the surface is smoothed and smoothed with cement. Conditional prefabricated cube-shaped cement boards can be used to paved the pool slopes. The gap between the slopes is filled with cement; the bottom of the pool is laid 20 cm thick. After the clay and quicklime are rolled, or evenly laid 30cm thick clay, add the appropriate amount of water and then mechanically stir, let it dry, forming a protective layer after compaction.
Laying a thin film method For a small-scale fine-farming fish pond, the four sides of the pond can be leveled and compacted, first 2-3 cm thick with a thin layer of mud, and then a layer of plastic film. The bottom of the film is buried in the bottom of the pool about 15 cm. The upper end is compacted with mud; the bottom of the pool is covered with clay and quick-lime mats, or 20-30 cm thick clay is evenly laid. After adding water or human excrement, the mixture is mud-formed, allowing it to naturally penetrate and dry to prevent water leakage. it is good.
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