Originally Posted By: Walt Foreman
One question that may very well fully display my ignorance of pond construction dynamics: could something that heavy potentially cause a leak, say if the pond bottom where it comes to rest has a thin layer of clay and less desirable soil underneath, and the multiple tons that thing has to weigh apply enough pressure to push through the clay?

You know, I don't think so, Walt. Big rootballs are real heavy, but close to neutral buoyancy once submerged. Even before that, they weigh less than a sheepsfoot roller or whatever else may have been used to compact the clay.

"Live like you'll die tomorrow, but manage your grass like you'll live forever."
-S. M. Stirling
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