Cliff- My pond is only two feet deep; a little deeper in the center. It has done pretty well over the years, even during the big freezes. Still, I wish I would have done more digging in the center. You get more water volume with the same liner (no extra expense) that way. Right now I'm thinking about putting another row of cement blocks on the sides so I can raise the water level - thereby making it deeper. I think in your case you should aim for having a deep spot of five feet in the center. Then it will probably end up being only four feet - but that will make for pretty good temperature stability. And the big water volume will make it easier to keep the water quality stable. Steev > On Thursday, July 23, 2009, at 06:12 PM, > gsas-member-request@thekrib.com wrote: > > > At various garden centers I've been told it doesn't matter, 2 feet, 4 > > feet, and 10 (!!!) feet. Ten feet is out of the question (and > > hopefully > > ridiculous), and the pond will only be around 20x14, so I don't think > > I'd > > like the sides to be too brutally steep. Will two feet do it, or > > should I > > aim for 4 in the middle? > > _______________________________________________ _______________________________________________ GSAS-Member mailing list GSAS-Member@thekrib.com http://lists.thekrib.com/mailman/listinfo/gsas-member