Question about Sinks

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Clunking noise in sink

When we turn on the hot water in the downstairs bathroom, it makes a VERY loud, fast, clunking/vibrating sound. Some characteristics of the sounds are:
It only does this on this sink in the whole house
It takes a moment for it to start (probably coincides with when the hot water comes in)
The noise sounds like it is coming from within the bathroom, ie, it does not seem that the noise is coming from the adjacent laundry room where the other pipes are.

Any ideas?

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You are describing a problem known as water hammer. This will ultimately cause damage somewhere in your plumbing system so it should be addressed. If you are handy you can install an air chamber near the sink. If you want more information let me know. good luck.

Posted on Jan 18, 2009

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Air in the water line causes this hammering effect. It is called water hammer. This is a simple fix a plumber can do in about 30 minutes if he is an honest plumber. You just need a water hammer arrestor. It is a small L shaped piece attach inline that stubs off the side of the hot water pipe. Hopefully you know a neighbor or friend that would do this for you - cheaper than a plumber!! Search water hammer or water hammer arrestor in a search engine and you should be able to find a link that will show you a picture of what I am describing. Good luck.

Posted on Jul 04, 2009

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Feel free to contact me again!
Please give me a rating here at fixya.com before you sign off
Thank you,
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