This is a simple instructable on how to create a continuous water tornado in a bottle!
Step 1: Get Two Basic 2 Liter Bottles
Step 2: Print Out the Tornado Tube With a 3d Printer From Thingiverse
Step 3: Attach the Two Bottles. One on Top of the Other.
Step 4: Get a 12V Bater and 2 Alligator Clips.
Step 5: Get Compatible Tubing for Your Pump and Attach It to the Pump.
Step 6: Lastly, Drill Holes Into the Bottles. Insert the Tubing Into the Bottles So That It Sucks From the Bottom Bottle and Sprays the Water Into the Upper Bottle. (zip Ties May Help Hold the Tubing in Place)