Nick,
I can get a 2X4 in from the top of the overflow, but it is about 30-40 feet from below the dam. Does anyone know how an overflow pipe is generally constructed. This is 10 inch pvc type pipe. Does it go down and then hit a 90 elbow and out?? Would there ever be a T with part of the pipe going on down for support? I haven't tried the roto-rooter yet as I have to get a generator to that area.
Thanks,
Mike