My wife and I just had a very small pond dug for our dogs to swim in. Size is about 35' x 25' (oval) x 6' deep at the deepest (Sloped sides). We have noticed that it has a leak somewhere as it does not hold water but for a week or so. We are planning on buying about 42, 50# bags of bentonite clay to till into the existing soil (black clay / gumbo as one person put it). Is this the right approach? I have heard this is the answer to seal the pond, and I have heard to the contrary. To me, this seems most cost effective vs a vinyl liner, esp. with the dogs swimming in it (tearing the liner). Any feedback would be much appreciated. Thanks!
