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Pure Blanket Method
The main idea is to get a solid cover over the area you want to seal. Avoid leaving bare spots that may result in seepage. It is probable that these bare areas will be covered as the Sodium Bentonite begins to swell. However, applying a uniform layer during application assures complete coverage and a successful seal. After spreading the Sodium Bentonite, carefully replace the top four to six inches of soil removed earlier. Avoid disturbing the Bentonite liner. Then tamp the area to compact the surface. Begin filling with water (gentle flow) if possible. The full saturation of this product may take approximately 60 - 90 days.
Keep in mind these two things when sealing a pond or stock tank: It is essential to use the recommended amount of sodium bentonite per square foot based on your soil type and the size of area you are trying to cover. Also, an even application ensures an impenetrable bentonite liner.
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Clear the area of any surface rocks and vegetation, as well as removing the top four to six inches of soil from the bed of the pond, lake, sewage lagoon, etc. For best results, smooth the area with a roll or a drag plank. Cover the area you want to seal with the predetermined thickness of our Granular Texas Sodium Bentonite. A mechanical dry fertilizer spreader with controlled distribution is a good application device as well as a front-end loader. 
In all methods of Sodium Bentonite application, it's the swelling of the particles that stop the leak. Sodium Bentonite will not stop the leak immediately. Some seepage is to be expected for up to 60 and 90 days after the Sodium Bentonite is applied. Generally, the leak is stopped or at least slowed within 45 days but, due to underlying circumstances such as rocks, roots and underground springs, some ponds require more Sodium Bentonite than the recommended amount. Some ponds, due to poor site selection, improper design and poor construction, may never seal completely. Therefore, we cannot guarantee this product.
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