On Sat, 14 Aug 2004 20:31:34 -0700, "gng"
wrote:

Maybe I can help. I have a 2500 gallon pond and started losing about 3" a
day. Looked carefully and found a hairline crack along the waterfall. It
was maybe 1/16th of an inch, or less. I thought there was no way a tiny
crack could be the issue, but once I sealed it it was solved. Guess I
should have paid more attention in high school physics.

Hi Gary,

How did you find that crack? I have rocks on the liner all the way
down. Did you listen or see the crack first. Water seems to sit okay
in the top tier (1") when the pump is turned off and it seems to stay
in the larger bottom receptacle(3x3') when I turn it off. Sounds
like a bit of grunt work coming.

Larry
Southern Ontario