Ok i am real new to model train building, i am currently planning a small layout to start with. One thing i really would like to have on my layout is a real working waterfall flowing over a train tunnel down into a river which flowes through the layout into a lake. As far as the waterfall and making it so the water won't leek into the foam i can do that i just want to know if there might be complications later on in using real water with an electric train set, even though its not alot of voltage. Worst case i will have to settle on learning on how to make fake water and a fake waterfall, but real would be so much nicer. If anyone could let me know if they have used real water and or if its a good idea it would be great.