How to Get a Siphon Going


A siphon is a tube that carries liquid upward from one point to another. One familiar example of a siphon is a drinking straw. By sucking on the straw, you can bring liquid up from a glass even though liquid would normally only flow downhill. The trick to getting a siphon to work is creating low pressure at the far end of the tube, then letting gravity do the rest.

  • Place one end of your siphon tube in the liquid you are trying to move. Stick the other end in your mouth and get below the point where the liquid is.

  • Begin sucking, just like you would for a drinking straw. Do not take your mouth off the siphon as you draw the liquid up the tube, or the pressure in the tube will rise and the liquid will fall back down.

  • Suck until the liquid reaches your end of the tube. If you are using a clear tube, you will be able to see the liquid approaching. If you are not using a clear tube, you can wait until the liquid touches your mouth or you can suck until you think the liquid has almost reached you and wait for the liquid to come the rest of the way on its own.

  • Remove the tube from your mouth and curve it downward into the receiving container. Gravity will cause the liquid to continue flowing down your siphon as long as you keep the tube below the point from which the liquid is coming.

Tips & Warnings

  • By definition, a siphon is a tube where liquid must come up first before coming back down. Once you start sucking on the tube and get the liquid past the point where it is moving upwards, you can curve the tube down and gravity will cause the liquid to keep flowing even if you stop sucking it.
  • You can use other methods of sucking the liquid besides your mouth, like a pump or a bellows.

Related Searches


  • Photo Credit drink straw image by saied shahinkiya from
Promoted By Zergnet


You May Also Like

  • Gravity Feed Vs. Siphon Paint Guns

    Paint guns come in two different feed types: gravity fed or siphon (pump) fed guns. When considering the type of paint gun...

  • How to Siphon Liquid

    When you have a container filled with a liquid that can't be moved, such as a large fish tank, you must use...

  • How to Make Straw Hats

    Straw hats have been around for centuries. No one knows exactly when their history began. There's evidence of something similar to a...

  • How to Siphon

    If you need to empty a tank of water or another liquid filled tank, but that tank can't be moved, you can...

  • How to Open Up Your Eustachian Tube Naturally

    Fluid or the accumulation of mucus can cause clogging in the eustachian tube, and it may become difficult to hear. A clogged...

  • How to Make Strong Straw Towers

    Maybe your child has been assigned a school project to assemble a strong structure from drinking straws. Or perhaps you have some...

  • DIY Bell Siphon

    A bell siphon is used in systems where the water needs to be drained. The siphon bell allows a tank of water...

Related Searches

Check It Out

How To Travel For Free With Reward Points

Is DIY in your DNA? Become part of our maker community.
Submit Your Work!