Nancy
This is a great concept and one that I have been researching since I too came across David Pagans utube page.
I am in the process of a gabion retaining wall, my family is wanting a pool thus how I found David.
Have found much more information concerning using gabion as a retaining wall in this way?
the comment from Robert made sense and for me fortified my thinking that I was in the right direction as it would be a "relatively static pond"
If you have the time to post pics of the project and or have come across any more information concerning this plan I would very much like to see and read.
Thank you
Respectfully
Lance