Thanks Jeff.
It does appear that my posting was hijacked.
There is some good information about force vectors, etc. from TN Hillbilly ... and, ewest about the value of a keyway/core trench (i.e. reducing the chance of sheer pressure being reached ... and chance of leak/break.
My leaks are through the dam (built without a keyway by the previous property owner). At this point, I think my options are: a) drain the pond and rebuild the dam with a keyway (expensive); b) line the pond with a pond liner material (expensive ... over $30K!); c) keep adding french drains to vector the leaks back to the spillway creek (moderately expensive - $5-10K); or d) do nothing and hope the leaks through the porous dam eventually seal up.
- Bob
