On Sat, 14 Jun 2008 05:47:32 EDT, "Bill Stock" wrote:

I've pretty much decided to go with retaining blocks for my new waterfall.
I've considered a few designs, but think I'll use a wishing well design with
a cascade out the side. But this presents three problems, one, I need a weir
about 15" wide, 9" deep and about 4" high, two I need to contain the water
in the well and three I need to attach the weir to the container.

This is pricey, but maybe you could find something like it to fit?
http://www.thatpetplace.com/pet/prod/203182/product.web
Cheaper ideas that might work:
http://www.aqua-mart.com/atwaga.html

Also, if the wishing well is wood, could you staple the liner on, or run it
over the edge and cap it with wood rather than stone?

I was originally considering a round Whiskey barrel container

Now I have seen these bigger than whiskey barrel size at Lowe's/Home Depot
type places with weirs.

I think I'd like weirs that come built in due to leakage. ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us