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I understand what you're talking about, but my question is why would you want to go to all that trouble?
In the land before Aquascape, I used to build falls with natural stone and a pipe for a water source and all I can say is "Thank God for Biofalls!"
When building falls with only natural stone, you still need a tub from which the water eminates and that means creating a box out of stone and sealing all the edges. It also means creating an inlet opening for the pipe and sealing that as well. No matter how well you seal all of these edges and openings, they're going to crack over time (especially in winter climates) so they will all leak at some point. Because that's true, you'll have to run a liner throughout the back and bottom of whatever you create to make sure all of that leaking water finds its way to the pond.
Since going through all of that is a job in itself, I couldn't see where I was gaining any significant advantage in building a waterfall in such a manner when a biofalls unit solves a multitude of problems and the only "issue" with it is to disguise it.
Not only that, but siting the weir is infinitely easier with a biofalls unit because once my stream bed is more or less in place (or my liner if it's just a basic waterfall), I can temporarily hook up the plumbing and mount the plastic shelf on the falls unit and I can "walk" the weir around the area where it will be and try out different positions until I come up with something either I like or the homeowner likes. Then all I have to do is dig in the biofalls unit and glue up the liner. Everything after that is just decoration.
The word I always hope to hear from a client is the word "natural" as in: "Wow, it looks so natural!"
Once I hear that, I know I've done it right.
I agree that "Nothing beats the real thing", but in terms of ease of installation and the fewest potential headaches, I'll take the Biofalls unit any day over trying to create the same effect with stones, caulking, mortar and flexible PVC.
Take a look at the pictures in the links below. Every single one of these falls - both pond falls and swimming pool falls - start with a Biofalls unit as the water source. Now maybe they're not geologically spot-on as would be a real-life rock formation, but they're pretty darned close and they all look natural. And most importantly, the client is happy.
And the cardinal rule in business is:
"If da' client ain't happy, wud'n nobody happy!"
-JP
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Any activity becomes creative when the doer cares about doing it right,
or doing it better.
- John Updike
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