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๐ง Seal your pond leaks like a proโnatureโs own waterproofing powerhouse!
Natural Waterscapes Granular Sodium Bentonite Clay is a 25-pound blend of chips and powder that expands up to 15 times when wet, creating a powerful, flexible seal for ponds, dams, and water features. With a swell index over 30, this all-natural Wyoming sodium bentonite clay is designed to be mixed and compacted with soil, providing an eco-friendly, durable solution for pond leak repair and waterproofing applications.






| ASIN | B077MMVPJM |
| Best Sellers Rank | #162,031 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #108 in Water Garden & Pond Liners & Seals |
| Brand | Natural Waterscapes |
| Brand Name | Natural Waterscapes |
| Customer Reviews | 4.3 out of 5 stars 141 Reviews |
| Item Dimensions | 12 x 12 x 11 inches |
| Item Form | Granules, Powder |
| Item Weight | 25 Pounds |
| Item dimensions L x W x H | 12 x 12 x 11 inches |
| Manufacturer | Natural Waterscapes |
| Material | clay |
| Material Type | clay |
| Model | 200025 |
| Part Number | 200025 |
| UPC | 860625000317 |
N**E
Works well to seal leaks in ponds
This product has really helped my leaking pond. Even though I added it with water in the pond, it has made quite a difference. Easy to use and effective.
T**S
Great Product, but doesn't work in the water.
The product is good, but I was uninformed by Google AI telling me it would stop a leak under water. Wrong! This product needs to be worked into the dry soil to work properly. I waste my money, not because the product was bad, but because I used it the wrong way. If you want a product to possible stop a leak without draining your pond or reservoir, check out Seek Leak. I used it and it worked.
H**Y
Make sure to let it dwell for 20 min before using
Used this as a slurry coat with concrete on a concrete pond. It worked well but milked the water a lot. Put a dirt coat on the surface. Resolved the issue. It did a very effective job on the fixing the leak.
Y**S
Buy extra
Takes a little time to work.
K**Z
Became slushy in water
It did not seem to swell up like a blockage that I expected, but Iโll give it some time. I needed only one third of it, so I may have wasted my money getting this only size available.
A**R
pond leak repair
worked well to fix a pond leak
P**G
Repair leaks in a pond dam.
It appears to be working to seal the leak in the pond dam. Why did you pick this product vs others?: It was recommended by a friend.
J**A
Donโt buy does not work
Did not work
Trustpilot
2 weeks ago
2 weeks ago