Granular Bentonite Pond Sealer
Benseal Sodium Bentonite Clay for sealing marginal pond soils. Sold in full pallet of 48 - 50lb bags, 2,400lbs total. One 50lb bag = 0.7 cubic feet Bentonite is a natural expanding clay sealant that when exposed to moisture can expand 15X or more creating a very effective pond sealant when applied correctly.Sealing Leaky Ponds - Noble Research InstituteSeveral options exist for sealing leaky pond sites including natural siltation, mechanical compaction, livestock concentration, clay blanket, bentonite, sodium chemicals, flexible waterproof liners, organic material (gleization), cinders, concrete, or asphalt. Most of these techniques are expensive and/or involve considerable work.