We have a 3/4 acre pond that is newly renovated. It was a cow pond that was full of everything bad. (trees, limbs, rocks etc.) that had accumulated over 50 years. The bottom of it is about 20 feet deep. It was full of watermeal and also full of water. It was cleaned out completely, all the muck removed to the red dirt we have in our area.

The pond now leaks. I don't see any obvious leaks in the dam. The dirt guy who did the work said there was enough clay that we didn't need to bring in any more. He also says that it will naturally seal over time and everything I read says that he isn't necessarily correct. I have read several posts where people have dug their pond multiple times. Like everyone else I would like to avoid draining it again.

I am not sure where to even begin....