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Why have the water pipes in my home started to hum/moan when water is cranked on? Lasts for 5-10 secs...then goes away

In ohio..been very dry here. On county water with no apparent flow problems. House less than 30 years old.

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Check the valve in your toilet tank. Even 5 or 10 min. after its been flushed, a low pressure in the line will surge when the pump kicks on and the tank will finish filling. The weak valve will vibrate, and the water line can amplify it.

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You have air in the pipes.

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Hey Bud
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Hey Mik. How's things going out west
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So far, so good. How are things East of us?
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So what can be one to get air out of pipes?
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Probably old galvanized lines clogging up .

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Has your water company done any work to the water lines in your area or any of the water pumping stations? It sounds like the water pressure in your pipes is high. Once you turn on the water, the pressure is relieved and that's why it stops.

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The hum actually occurs after the water is turned back off.
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You'll hear water hammer after the water is shut off, but that isn't usually described as a humming sound, more like a banging. Sorry I can't be more helpful.
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Thx for offering....yeah this more of a prolonged hum..vibration after water shut-off
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