I suggested to him that we take a track hoe and dig a trench right down the middle of the entire levee length deep enough so that it is below the natural ground level. We could then pack clay into that trench. This would essentially result in building a water tight core. If we did that, then I wouldn't have to drain my pond.
He felt like it wouldn't work. Have any of you ever tried this and what do you think my results would be?
