Tony,
That's one of the most frustrating problems in all pond management. Take some time to search these posts and you will find lots of conversation about that topic.
But, you have to dig to find the leak, somewhere, some time. I have seen leaks through a dam, under a dam, around a dam, through the side walls of a pond, and through porous bottom soils. I have seen leaks go through a gravel vein no larger than a garden hose, and pond go dry within three days of filling. Water seeks the path of least resistance, but often keeps that path a secret, just to torture guys like us.
You should give our good friend, Mike Otto a call. Plus, new advertiser Nick Jones is an outstanding earthmover from Paris, Texas, not far from DeQueen. Their numbers are in Pond Boss magazine.
