Pond Lining using Pond liner / Geomembrane
Water is one of the most basic human needs and is one of the most important natural resources. All forms of life are dependent on it. There is scarcity of water resources and water is becoming more costly. It is therefore, very essential to properly conserve and manage this natural resource and regulate its use to obtain maximum benefits.
The major portion of stored water in an excavated pond is lost due to seepage. The requirement to provide a barrier against high rates of water seepage loss is already a reality in the way of pond lining method. Lining the ponds by installing PVC coated synthetic fabric liner or Multilayer Co-Extruded film Geomembrane or HDPE liner has proved to be an effective seepage proof and an economical solution.
A pond liner is a waterproof geomembrane used for water retention, including the lining of farm ponds, water storage ponds, garden ponds, residential decorative ponds, koi ponds, commercial decorative ponds, golf course ponds, leisre parks, rain water harvesting ponds, fish ponds and water reservoirs. Pond liners need to be protected from sharp objects (for example, stones) below the liner. Protection can be provided with a layer of fine sand or non woven polyester geotextile fabric or pp geotextile fabric.
After the basin is excavated, the surface of the excavated area should be free from sharp objects. If the surface consists of coarse particles, a layer of fine sand should be spread on top. For anchoring the liner, a trench should be excavated around the pond. The trench allows for the burying of the liner around the perimeter and is usually the easiest and most cost effective way to secure the liner. Liners are installed covering the bottom of the trench and applied towards the basin. After the liner is buried inside the trench the trench is filled with the excavated soil.