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Plumbing tip on how to remove an airlock

An airlock is like a bubble that seals the flow of the hot water in your system. When it occurs it effectively blocks off your hot water supply in your home. However, before you go investigating for airlocks in your plumbing it's important to first check for the following:

  • Do you you have cold / mains water coming in to your house ? If not the problem is most likely a distrupted water supply. Check that your kitchn tap is working and failling that, ring your local council.
  • Do you have a leak ? To see the check for the signs click here
So if you have ruled out the above, to fix an airlock try the following:
  1. Get a piece of garden hose (about 1 foot long) and some duct tape.
  2. Connect the hose to both the cold water tap and the hot water tap. Seal it with the tape.
  3. Now turn on the hot water tap.
  4. Then turn on the cold water tap for a quick blast – maybe 5 seconds.
  5. Turn off both your taps.
  6. To see if it has worked out and the airlock is eliminated, turn on another hot water tap in the house to see if you now have hot water.
  7. If not, repeat the steps three more times.
  8. When you get the hot water back working, switch off all taps and remove your hose.
  9. If you can’t fix, click here for a plumber

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