Removing an airlock from an overhead tank often involves creating enough pressure to force the trapped air out of the system. Here's a method that might work:
Steps to Remove the Airlock:
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Identify the Problem: An airlock usually manifests as a tap that produces sputtering water or no water at all, even though the tank is full.
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The Shower Method (Based on Reference Information):
- Partially block the showerhead with plastic bags (or similar material). This creates backpressure.
- Go to your header (overhead) tank.
- Turn off the hot water outlet valve only. Leave the cold water outlet valve open.
- Go back to the shower and turn on both the cold and hot water taps fully. The pressure from the cold water system should force its way back through the hot water pipes, dislodging the airlock.
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Alternative Methods: If the shower method doesn't work, consider these alternatives:
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Running All Taps: Simultaneously open all taps in the house (both hot and cold). This can sometimes create enough flow to dislodge the airlock.
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Hose Method: Connect a hosepipe to a tap below the airlock (if possible) and connect the other end to a tap that is working correctly. Open both taps to attempt to force water through the affected pipe in reverse, pushing out the airlock.
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Check Valves: Inspect check valves in your plumbing system. Sometimes a faulty check valve can contribute to airlocks.
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Professional Help: If you are uncomfortable working with plumbing or if the problem persists, call a qualified plumber.
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Important Considerations:
- Safety First: When working with plumbing, always turn off the water supply before making any disconnections.
- Type of Plumbing: The best method may vary slightly depending on the type of plumbing system you have.
Troubleshooting Tips:
- If the problem persists, the airlock may be located in a difficult-to-reach area.
- Consider whether any recent plumbing work was performed, as this is a common cause of airlocks.
