You need to know what is down there. If you have shale at 6' going deeper could be difficult and cause leaks. But as esshup noted shallow ponds can be hard to manage. Not only what he noted but also shallow ponds tend to have more DO (dissolved oxygen problems) ie fish kills. A few core holes outside of the pond may help you make a wise choice.

Last edited by ewest; 07/05/22 04:52 PM.