Recently my little brother bought some land and it came with an acre pond. The pond dam leaks and was wondering if thee is anyway to fix it without digging up the dam. The dam is really narrow like the width of a lawnmower. It had a bunch of trees and brush on it and i told him to start by cutting those down. I think the dam was leaking through where the roots are. Over time, the ground will settle when the roots start to rot but we both are impatient and want it full now lol. There are fish in it and would hate to lose them by digging up the pond dam. Any one have any ideas?