The property I just purchased has an old pond on it. It appears to have been dugout in the last few years and enlarged. It measures approx. 50' wide x 100' long It only holds water in the very bottom. I'm going to assume it held water before it was enlarged.

How can I get the pond to hold water? I am aware of a type of liner but I have heard that they may or may not work. Any suggestions are appreciated.