Nice song idea Lisa, and what a great way to get started at Rotation.org!
When I saw the word "fountain" in the song you posted, I immediately thought of sheep drinking from the water that the Good Shepherd leads us to. Reminiscent of Ps 23's lead be beside "still waters."
"Spring" is a synonym. An important explanation to kids who might be thinking of this kind of fountain:
or this:
On the other hand, what do THESE modern types of fountains tell the kids about God ??
The word "Fountain" (spring) only appears in the Old Testament and is associated with images of hope and restoration. Jesus turned the idea into "Living Water" at the well. Interesting!