
4. Connect the base and the base cover, making sure the wires are kept inside, by using three screws on the
underside of the base.
5. Turn the finished base upright. Push the propeller onto the motor spindle.
Congratulations! Your Tornado Maker is ready.
E. OPERATION
1. Put two 1.5V AA batteries into the battery case, with the negative terminal (the flat end) touching the
springs. Install the battery cover and secure it with one screw.
2. Take a plain transparent water bottle no larger than 1.25 litre and remove any wrapping or labels. Fill the
bottle no more than 80% full with water, leaving it at least 1/5th empty (If you fill the bottle too full, the
vortex will not form.) Cut off a corner of the bag of foam balls and pour some into the water bottle.
3. Place the Tornado Maker upside down onto the mouth of the bottle and turn clockwise to screw it on. Be
sure it is on tight!
4. Turn the set-up upright, with the base at the bottom. (If any water leaks from the bottle, turn it upside
down, remove the Tornado Maker, dry it and tighten the two screws attaching the bottle holder. Then
reattach the Tornado Maker and turn it over again.) Turn on the Tornado Maker using the ON/OFF switch.
Watch the water swirl to become a tornado! See how it changes in shape when you tilt it!
For more fun, try bottles of different shapes and sizes (but no larger than 1.25 litre). You can also add food
colouring or glitter, and shine a torch through the bottle! Make it look like a really destructive tornado by
adding some coffee grounds to the water. You can even decorate the Tornado Maker and bottle to make it
completely unique!
When it is not in use, turn the whole set-up over, or take off the Tornado Maker from the bottle.
After a few times of operation, uninstall the propeller and unscrew the bottle holder, apply some cooking oil
or vaseline as water-resistant oil to the water-resistant ring for better performance.
F. TROUBLESHOOTING
If water leaks from the bottle, make sure:
• The bottle holder is secured tightly to the base cover;
• The water bottle is screwed tightly into the bottle holder;
• The red water-resistant ring is installed around the motor spindle;
• The water bottle is in good condition.
If the propeller does not run, make sure:
• The batteries are new or still usable;
• The batteries are correctly installed;
• The motor, bottle holder, and propeller are all correctly installed (refer to sections D1, D2 & D5);
• The wires are correctly connected (section D3).
If no vortex appears, make sure there is enough empty space left in the bottle. If in doubt, empty a little
water from the bottle and try again.
If the vortex cannot be formed completely, try using another bottle, as the difference in shapes and sizes
could affect the outcome.
If the propeller slows down after operating for some time (the water pressure can cause the motor to
overload), turn over the set-up and switch it off for 15 minutes. It is also not recommended to use the
Tornado Maker for long periods of time.