How Do I Fix This Dam Hole?
I bought a home and property about 18 months ago, which includes a pond. The pond is completely spring fed and flows well on the driest of days. We’ve had some work done around the landscape, including cleaning up muck in the pond and overgrowth around it. This included fixing a leak next to the dam, which turned out to be layers of topsoil mixed in with layers of clay. Fixed.
After filling the pond back up, the next morning it was almost empty again. The dam had developed a leak below the boards that set the water level, in the form of a roughly 6” diameter, perfectly round hole. My guess is it was there as an overflow, but was at some point plugged up. Not sure if this was somehow connected to the other work we had done, or if so how it could be.
Given the water flows constantly, what is the best way to plug this hole? Any thoughts would be appreciated.