Pond Leak Sealant (Bentonite, 50 lb Bag) FREE SHIPPING

Also Available by the Pallet Fix pond leaks—before they get worse. Sinking Bentonite Granules – 50 lb Bag for Sealing Leaks in Full Ponds Fix pond leaks fast—without draining a drop. This specially screened bentonite sinks directly to the pond bottom and swells on contact with water, sealing leaks from the inside out. Whether you're patching cracks in a dam or plugging mysterious seeps, these 50 lb bags are perfect for targeted leak repair in full ponds—no equipment, liner, or excavation needed. Why It Works: Filtered for Clean Sinking – Granules drop straight down, no clouding Swells on Contact – Expands into cracks, gaps, and porous soil Self-Spreading Action – Flows into problem zones with water movement No Pond Draining Required – Apply directly to surface or slope Best Use: Leaks around pond edges, dams, and spillways Narrow seeps that don’t require full bottom coverage Ponds that cannot be drained Application Tips: For seeps: Spread a 20-ft-wide strip (10 f