Do you have a pressure reducing valve on the incoming main? Do you have a well? Same on hot and cold lines?
Try to determine where the noise is really coming from. I suspect you will find it is near where the water come into your home.
Seems that all faucets, when turned on a little bit, creates a steady noise that permeates throughtout the whole house.
Usually it does not bother me, since I'm used to this sound. But it is very noticeable when I am up early in the morning and am trying not to disturb other people when using water.
Are there quiet faucets? I searched on the internet but didn't find much.
Joe is on to the cause. If system pressure is high (> 50 PSI), the faucet will be throttling that high pressure to get low flow rates. That results in the turbulence and high-pitched squeals.
Measure the system pressure and, if it is high, install a PRV (along with an expansion tank). You'll have to decide if that's more trouble than the noise...
Jim
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