roduction – Building the Current Chute
1. Build the current chute by filling the bottom holes in the window box if there are any.
2. Drill holes on the vertical ends as shown below. They should be the same diameter as the
tubing on the sink faucet or siphon. Insert the faucet tubing in the high end and seal using
the silicon aquarium cement.
3. Add tubing to the low end and set it over the sink to catch the overflow.
4. Attach hose clamps to each tube. Use a waterproof marker to make a 50 cm current
racecourse in the center of the box, marking the front and back ends. See illustration for
design. Modeling clay does not perform well when repeatedly soaked, but can be used
more than once if handled carefully and not left in water very long