@The NYC Toy fair 2008 Bridge Street Toys had their geek-famous hydrodynamic building sets – you can build a model of an ice cream factory, a water treatment plant, a distillation plant and many other industrial structures. It shows how a siphon works, balance the flow through the plant by adjusting the valves. The user learns the basic principles of fluid dynamics while constructing and playing with this learning kit.
The building set includes an electric pump, siphon tank, large square tank, small and large round and cone bottom tanks, float valve, tilt scale, ball flow meter, water wheel, spray head, and assorted valves, pipe holders and pipe. The pieces are interchangeable with all other Girder and Panel and Bridge and Turnpike Building Sets and are HO scale.