Hey, Little Dog...There's lots of suggestions out there to plug the leak. Actually, plugging the leak is not usually the hard part. The hard part is figuring out where and how there is a leak. It's not just simply looking and seeing and knowing. If it were, newspaper may be a good answer. But, so would clay, bentonite, grits and organic stuff. When we think about leaky ponds, it's not as much of an issue of what material to use as much as it is an adventure to find out the mystery of the leak.

Teach a man to grow fish...
He can teach to catch fish...