Keep your head up, and look at the bright side. You have a two acre pond and a 5 acre pond. I know it is not what you want, but many of us here would be jealous.
I recall ML saying one time that good things come to those who persist. It is true. Take your time, and fix it. You can key the front of the pond floor. What suprises me, is that the weight of the 5 acre pond didn't seal it. The water must be going around the dam at the level it now holds.
