Next, I wanted water in my tunnel, but not real water! I ran into "EZ-Water" at a toy train shop and had to try it! It's basically plastic pellets you melt in a pan and can pour into a lake,pond, or waterfall in a RailRoad dio. But I used it for my own evil purpose! I used it for my tunnel!
Look for EZ Water here;
http://www.cchobbies.com/scenery/wswater.htm
I stold this picture of what it looks like from their website;
But since I just generated traffic for their site, I think they'll forgive me!
Anyway, I taped up half the tube using duct tape like so;
and poured the hot mixture in to cool! '