To reverse the flow of bubbles, you have toplace a magma blockat the bottom of the water elevator in Minecraft. Itpulls water down,and the entities in the water flow towards itself. You can keep changing the blocks at the bottom to switch the functionality of your elevator, but we sugges...
Place a Soul Sand block (or Magma Block) 1 block in front and below a Dispenser that has a Water Bucket inside. Activate the Dispenser. A Bubble Column is formed as expected. Activate the Dispenser again, the water is removed but the Bubble Column stays! While this glitch is cool, it ...