So stirring it up seems to help? How old is this pond? I might keep it up for awhile but like esshup said clay liner would be better. I have the same problem with seepage but cant see it. Its just going in to the ground I believe. Im watching levels now closely to see when it stops to get an idea of where the seepage starts.If you know right where its seeping I would be inclined to to try some more bentonite if you can get it drained down to where its at so you could mix it and pack it good.
