rattling pipes


Postby skyblueoz » Wed Aug 11, 2010 7:57 am

Hi all, hope you can help.

My father has just replaced the taps on the bathroom sink after the hot tap developed a leak. All seemed to go well, until a couple of days ago the cold tap has started to make the pipes rattle at certain flows. When the flow in question is reached, the pipe rattles fast like a machine gun. If careful, you can fine tune the flow even further and the rattling subsides, but instead the flow of water changes to a pulse with about 1 second intervals. He is stumped to the cause. I've looked around on the net for him, (he's a technnophobe!) and found 2 possible causes. 1, a "water hammer" but that should only happen when the tap is closed. (our noise is when the tap is opened as well.) or 2, a problem with the washer in the tap.

So, is my research correct, or is there another possible cause? And what should he do to sort it?

Thanks in advance,

Austin.
skyblueoz
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