Hello all.

I am new to this group so if this question was already asked I
apologize in advance. What I would like to know is if any of you have
constructed a waterfall on a natural rock outcropping, a piece of
ledge if you will. That is, make the waterfall and adhere the liner
to the base of the rock and ensure that there is no leakage. Any help
and advice is welcomed. Thank you all in advance.

-David.