My only advice is to seal it up VERY carefully. If it leaks when you turn
it on, you will spend the next couple years tying to plug it.
--
Don

"Mostyn" wrote in message
...
I am looking for a simple waterfall design can anyone help?
I wont to make a simple waterfall from natral rock and i am going to use
concrete rather than a liner, if anyone can help with some ideas or plans
i
would me greatfull.
Mostyn