Pond Boss Forums POND CONSTRUCTION Building a dam New pond "seasoning"

If, after 2.5 years, you still have seepage, don't look for it to go away by itself. Next, I would try to measure your seepage, to decide what to do. Put a measuring stick in the water, then monitor how much your pond level drops over time. Write it down. For example, if your pond drops an inch a day, that tells you something. If it drops an inch every week, you make a different decision.
I have seen ponds seep badly, where they drop a foot a day. But, I have also seen seeping ponds that stay full, because there's as much water seeping in as there is seeping out.