Esshup,
Can you explain that a little bit? I dont understand what you mean by compact the basin.
thanks
Dustin
The part of the pond that is underwater.
Unless I had soil that they could make pottery clay from, I'd feel better if ALL of the soil that wouldl be under water was compacted with a sheepsfoot roller. No telling if there is a void in the soil under the tree that would allow water to leak out of the pond when it was full.