Taps "hammering" or groaning

[John Carlyle-Clarke]

I've got a couple of taps that for want of a better word "hammer" when opened a particular amount. In one case - a mixer tap - this causes the whole tap to vibrate alarmingly and can be heard throughout the house.

Another one when opened a small amount makes a loud clear tone which seems to resonate through all the pipes in the house.

I'm curious - is this a fault of the taps, or is it something more complex?

Some of them at least I'm intending to replace soon anyway.

[Rob Summers]

Happened to me, replaced the washer inside the tap and all was fine.

Rob

[John]

Try dismantling the mechanism and using some suitable grease on the mechanism (assuming it isn't in contact with the water).

John