How to get air out of a water line

Written by james b. jones
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Air pockets are relatively commonplace in most plumbing. While most air pockets simply cause water to spurt out of faucets for a moment or two, some air pockets can actually prevent water from flowing properly. Clearing air from a home's water lines is not an difficult process, though it may take some time, depending on the amount of pipe and water line going through the house.

Skill level:

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Things you need

  • Section of garden hose

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    Remove Air Blockages From Home Water Lines and Pipes

  1. 1

    Locate the shut-off valve for your home's water lines. Once you have found the shut-off valve, turn off the water flow to your house.

  2. 2

    Open all faucets in your home. Every shower, bath and sink faucet should be open. Water may drain from the faucets for a moment until the lines have emptied.

  3. 3

    Allow a adequate amount of time---about five to 10 minutes---for the air bubble to dissipate.

  4. 4

    Turn the water valve back on to return water flow to your line system.

  5. 5

    Shut off the faucets in your home to finish the process.

    Removing Air Blockage From Single Faucet

  1. 1

    Slide one end of the garden hose to the affected faucet, and the other to a faucet that is functioning properly.

  2. 2

    Open both of the sink faucets. The pressure of the water coming from the working faucet will force the air out of the pipe.

  3. 3

    Let the faucet run for one to two minutes to ensure removal of the air bubble.

  4. 4

    Shut off the faucets, starting with the faucet with the blockage. Wait a few minutes, then shut off the working valve.

  5. 5

    Remove the garden hose and test the clogged faucet. If there is still an air bubble, repeat the process.

Tips and warnings

  • If all else fails, call a plumber who has equipment specialised to properly handle air blockages in water lines.
  • Be careful not to turn the pressure up too high when turning your water back on.

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