The best is to have the same piece of liner in the pond and under the waterfall. You could start with a pile of dirt but I used cement blocks under mine. The stone are stuck on with Great Stuff. Other people use preformed waterfalls. Look around for books on water gardening. Good luck.

Here is a link that might be useful: Aqua-Mart

there is an easy step by step guide that i found online one day. go here to get the guide. It has full color pictures and is super easy to follow.

so what are your plans for the waterfall?

If you need some help on building a Backyard Waterfall (or really any type of water feature in your yard) give the guys at Berkey Supply a call. 800-959-8353 www.berkeysupply.com

These guys really know water features, they sell full systems nation wide and their website is very informative

Take a look at my blog. Tons of info on this and lots of before and after pictures.

http://www.dougcolt.blogspot.com

Here is a link that might be useful: Doug Colt

Despite all abundance offers of backyard waterfall projects with several of their filling (stones, plant, fishes, etc), first it is necessary to define for itself, what kind of waterfall would you like to build also what delivers maximum of pleasure and minimum of problems.

Here is a link that might be useful: Backyard Waterfall and Its Features