Sodium Bentonite is a very versatile material that can be used effectively in many different environments. Sodium Bentonite is eco-friendly, and being a clay is harmless to animals and fish
Sodium bentonite clay has been successfully used as a sealant for earth dams where the soil is of a permeable nature and where less than optimum compaction can be achieved. It is extremely important that the bentonite clay is incorporated and compacted correctly as less than satisfactory results may be obtained if attention is not given to the application process.
Sodium Bentonite clay swells up to eighteen times its dry size when it comes into contact with water. Expanded bentonite forms an impermeable seal which makes for an excellent dam sealant. When Bentonite is applied correctly it will be environmentally safe and does not affect the water or harm fish, livestock, or wildlife.
THE PURE BLANKET METHOD The blanket method is usually the most effective method for sealing leaking ponds with bentonite. However, more care is required during its application. A mixture of powder and granular sodium bentonite, is best suited for this method unless...
When leaking occurs below the water level and the leakage area can be identified with reasonable accuracy, bentonite may be broadcast onto the surface of the water in that vicinity, several applications may be necessary to effectively seal the dams leak.
Mixed Blanket Method Empty the dam or pond by pumping out all existing water. Loosen the soil in the area to be sealed to a depth of 200-300mm. Adjust all slopes to a maximum slope of 3:1 (approximately 18-20 degrees) Prepare the entire area below the final water...