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Rapid 'tapping' noise in pipes. Soundfile available

Posted by sogupta (My Page) on
Mon, Dec 5, 11 at 21:48

Hello,

My tenants have noticed rapid tapping noises in our townhome's pipes. These happen randomly, sometimes about 45 minutes or so after last water use. The tapping noise lasts about 10-30 seconds, and the frequency has been going up over the last 4 weeks. It started as once per day, and is now at 5-6 times per day. The noise stops if any water is turned on.

The noise started after my tenants tried to bleed out the outside tap after closing the hose-bibs, to winterize these pipes. Now, even though they have turned these hose-bibs back on, the tapping still continues. The tapping is in the main house pipes.

A five second long sound file is available. I couldn't figure out how to attach it, but will be happy to send it to any kind soul that wants it.

Thanks
Sanjay


Follow-Up Postings:

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RE: Rapid 'tapping' noise in pipes. Soundfile available

Unclear description but wondering if what they're hearing is encrusted water-heater heating up....which generates "crackling" rather than "tapping" sounds, typically, but would coordinate with the rest of your description.

Do these tenants share a common water heater?


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