Russ that is an excellent idea! I'll have to try that. Another thought I ponder is how water flows? Can water flow downward and make a pond leak with a certain water level that adds pressure? and then drop and stay at a water level once it's dropped to a certain pressure? Just a thought. Cause if it's not that hole, that is the only other logical explanation. Are there any sites or pictures of any of you alls ponds while constructing them. I'd love to see if I did mine right. If it doesn't hold I'm think of diggin another pond where the land is flat and then tranporting them. Bob, my pond is a long way from the house it would prolly cost some huge dough to do that, but if i had the money I would in a minute. I got responses quicker than I thought i would. Thanks alot