How to siphon water with a hose

Written by rose kivi
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How to siphon water with a hose
A garden hose works as a siphon when first primed -- it's physics! (atm2003/iStock/Getty Images)

The process of siphoning water with a hose relies on basic physics. Gravity and air are used to push water through the hose. A common way to start the flow of a hose siphon is to suck on one end of the hose. Sucking on the hose results in the water getting into the person's mouth. There is a safer way to start a hose siphon flowing that doesn't involve sucking, and the best part is that no special expensive equipment is needed.

Skill level:

Things you need

  • Garden hose
  • 2 Clothes pegs or clamps
  • Tap

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  1. 1

    Plan your area for siphoning. The water source that you want to siphon should be higher than the drainage area; for example, siphoning the water out of an above ground swimming pool into a drain is correct. The water source being siphoned out of (the swimming pool) is higher than the drainage area (the drain).

  2. 2

    Place a clothes peg or a clamp on one end of a garden hose.

  3. 3

    Attach the other end of the garden hose to a tap.

  4. 4

    Turn the tap on to fill up the hose. This is called priming the hose. Filling the hose with water creates the pressure needed to start the siphoning action.

  5. 5

    Turn off the tap.

  6. 6

    Place a clothes peg or a clamp on to the end of the hose that is attached to the tap.

  7. 7

    Unscrew the hose from the tap.

  8. 8

    Put one end of the hose in the water source you want to siphon the water out of. Make sure the end of the hose is underneath the water.

  9. 9

    Place the other end of the hose in the drainage area where you want the water to drain to.

  10. 10

    Remove the peg or clamp from the end of the hose that is in the water source to be siphoned out. Make sure the end of the hose stays underneath the water.

  11. 11

    Take the peg or clamp off the other end of the hose and watch the water siphon out into the drainage area.

  12. 12

    Push the end of the hose that is in the water being siphoned deep down in the water to ensure that the water continues to siphon out to the very bottom.

Tips and warnings

  • You can prime the hose to start the water siphoning by sucking on the drainage end of the hose while the other end of the hose is in the water, instead of priming the hose by filling it at a tap. Sucking on the hose is not recommended because it can introduce contaminated water or other dangerous substances into your mouth, particularly if you wish to siphon grey or stagnant water.

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