"Bill Stock" wrote in message
...
The walls of my pond are very rough clay with lots of jagged bumps from
being chiseled out. I was originally going to put underlay around the
sides and bottom, but the walls are too steep.
======================
So was ours. After some years they started to collapse. We had to pull both
liner and make them more bowl shaped plus add reinforced concrete berms.
--

RM....
Frugal ponding since 1995.
rec.ponder since late 1996.
Zone 6. Middle TN USA
~~~~ }((((* ~~~ }{{{{(ö