Noisy pipes

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Old 04-27-05, 04:40 AM
ADF
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Noisy pipes

When I turn on the hot water tap in one of my bathroom sinks, I get this loud whistling noise. It only goes away if I reduce it to a trickle or turn it off completely.

If I had to guess at how to solve this it would be to replace the pipe leading to the tap (looks like about 12 to 14 inches) with a different type, perhaps a flexible one. Since there are no shut-offs, now may be a good time to put in a speedi with a shut-off.

Can anybody out there confirm that this is the proper way to go? Any other ideas?

Thanks in advance.

T.
 
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Old 04-27-05, 10:54 AM
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It could be in the faucet, and you can test this just by swapping the supply lines or checking the valves. You know how brass horns make music? Same thing.

Otherwise, an air chamber might help. That's just a dead-end riser of (copper) pipe, but it would live in the wall behind the shutoff and I guess you aren't going there.
 
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Old 04-27-05, 02:45 PM
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Thanks Kobuchi.

From the research I've done since I posted this, it sounds like it's a case of "turbulence". And as a horn player myself, you're exactly right about how brass instruments make sounds. It could be anything like a valve, washer or pipe.

I think I'll start with the simple stuff . . . washer first . .. pipe and valve second.

And you're right, I don't want to go behind the wall if I can avoid it. . .. mostly because the genius who put this together never put in a shut-off. The only shut-off to this tap is the main shut-off inside the house.

Thanks again.
 
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Old 04-28-05, 09:31 AM
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My bet is a dirty or damaged aerator on the faucet.
 
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Old 04-28-05, 07:10 PM
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I'll take five on the washer theory. They get old and fray. Then when water is flowing, they sing. Vibration is a strange thing and does strange things. Good luck.
 
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Old 05-02-05, 02:27 AM
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And the answer is: washer!

Although the old one wasn't that worn out, putting in another one that was completely flat rather than having a slight dip made the difference. That's all it took to remove any "turbulence" causing the noise.

I had already tried cleaning the aerator with CLR but that didn't help.

So thanks guys for your suggestions.

T.
 
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