Ok so I am trying to seal the leak in my dam with bentonite. I am draining my pond down to below the leak "Rain is not helping". Granular bentonite is pretty expensive but I found a place near my pond that sells bentonite dust cheap. The company is Amcol the dust is the by product of there cat litter facilty.
http://www.amcol.com/ The man I talked to says people use it all the time for pond repair including himself. I can get it for $45 a ton where granular comes out $16 for a 50lb bag. Anyone use the dust form? At $45 a ton I can reseal the entire dam.
