Meadowlark,
Your point is well taken. I most definitely want the pond to hold water.
On the other hand, I could follow my wife's suggestion and line it with concrete and end up with one BIG swimming pool!
Not that I could afford it if I wanted to!
I guess I'm wondering if anyone has actually dug and used their own gravel for anything.
Should I just avoid it like the plague?
If I do try and use it, I'll have to dig deeper and wider than originally planned which will involve more $$$. I'll also need to set enough clay aside to come back and cover the gravel.