Guys I have a 4 year old 3 acre pond at my farm. It has f1 bass and cnbg in it. Pond is located in central Alabama.

Long story short I have a leak in my damn and the only real way to fix it is to drain and redo the damn. I am not willing to throw $30,000 at it right now.

At the height of the drought my pond was probably down 7-8 feet last summer. We still caught fish but I am worried about the o2 levels in the pond should it fill back up quickly.

How do you determine if you need an aerator? Depth at full pool is 15-16 feet at the pipe.

Here are some pictures of the lake when it was low.

http://s27.photobucket.com/user/emrisg/library/Farm%20Pond

Thanks for your help.