fish,

I'm having trouble following:
Full pool is 6ft.
It dropped 7+2+1+1/2= 10 1/2" & stableized at 1" above normal?
It stopped an inch or two higher .. than before adding clay to the bottom?

I think you have made a great effort to first build & then repair your dam. But .. even though you added somewhat of a key to the front of the dam (which I have to add wasn't compacted enough) the rest of the dam directly behind the leak was previously saturated.
Therefore you have simply slowed the leak by adding the clay in front of a pathway for water to pass through your dam.
The leak can be slowed further by adding more clay in front of the dam, or digging down & removing the saturated soil & rebuilding.
Good luck!

Pond Boss Subscriber & Books Owner


If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric