[Al Skierkiewicz]

Sandi,
Take the above advice, if you use one pump for the whole thing it will require some thinking and planning. If you want a really outstanding look, remember that water can be made to appear like a large flow with the addition of turbulence and air. Turbulence can occur with a textured water trough and you can introduce air through small jets behind the water. Don't forget you can also add to the illusion with an audio recording of falling water.