I would want more than one test hole to check out a pond site, especially if it was the first pond I was building on that property. I dug two deep ones to check out my second pond, and I already had one no-leak pond here and 20 years experience watching water sit on top of the ground where the new pond went (lotsa clay).

As far as depth, I would want to check at least as deep as I was going to dig for the basin or core.

P.S. My mudball sat on the kitchen counter for about 9 months as inspiration between digging testholes and pond construction.

Last edited by Theo Gallus; 04/05/08 09:49 PM.
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