I have a clay bottom pond with a rock wall dam that has a rock waterfall into a spillway. Under the waterfall has a significant leak (most likely muskrat damage). I believe the leak is repaired and I'm ready to rebuild the waterfall. I was thinking of a heavy layer of sodium bentonite then pouring concrete (15" x 30" 24" deep)
then finishing with rocks. Has anyone tried something like this? Any ideas greatly appreciated
then finishing with rocks. Has anyone tried something like this? Any ideas greatly appreciated