System diagrams for school

I am working on a science project and need a diagram of how hydroponics work. Can you e-mail me one or lead me to a web site that has one?

You should find some pictures on this site, but you will notice that there are so many different systems available that are all called Hydroponic. email me at scott@hydrocentre.com.au with some more information on what your project requirements are and I might have something from my bag of tricks.

Scott