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Faucet siphoning air

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Hdick

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I have a laundry tub faucet that continuously siphons air. I do not have any leakage in any of the pipes in the house. I would like to find the cause and a solution to this problem.
 

Jeff Handy

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Much more info and pics will be needed.

Describe exactly what you mean by the faucet is siphoning air, for starters.
 

Hdick

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The faucet sucks air like a vacuum.I put a cup of water under the faucet and all the water was sucked in.
 

Jeff Handy

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Is there a recirculating pump at your water heater, or in a cabinet under a faucet far from the heater?

Does this suction happen with the faucet closed, or open, hot only, cold only?

Pictures.
 

Hdick

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It happens only when the faucet is closed. I would have liked to attach a video but the video that I have downloaded does not play!!!
 

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