Revolutionary new way to seal leaking ponds, dikes, dams and spillways, etc.  Sodium bentonite clay bonded to limestone aggregate creates a small rock-like "nugget" that sinks directly to pond bottom.

• Seals leaks without draining the pond.
• Clay particles swell when wet creating a solid layer of leak protection.
• Great for sealing around intake pipes, muskrat holes, cuts and tears in liners.
• Eco-friendly - all earthen ingredients, will not alter water chemistry.
• Apply at five pounds per square foot for a ¾" thick coverage or ten pounds per square foot for 1½" thick coverage.