Pond Boss Forums POND CONSTRUCTION Renovating a Pond or Lake? hole in back of pond

There is a "hydraulic water plug" cement that will set-up under water. We used it when we were sealing a concrete bridge that a shipyard turned into a pier. They towed it to San Diego from the state of Washington and it was cracked on the trip down. We had a diver in the water sealing the cracks, and we were on the inside injecting epoxy into the cracks to seal/glue them together.

The cement that we used was made by Sika Company. No aggrigate in the cement.