Tap squealing - Water hammer problem

[plumbduff]

The upstair bathroom sink tap has developed a loud squeal, thumping noise when first turned on which I think is water hammer. I can't identify the cause of the problem. I have tried changing the washer etc. Should I fit a mini rester somewhere and if so where is the best position - could it be the highest point in the pipe run?

 

[galaxy_plumbing]

any other taps have problem? any service valves installed on the supply?

 

[plumbduff]

any other taps have problem? any service valves installed on the supply?

Strangely, it's disappeared after I changed the washer yet again, I hope doesn't come back!
BTW no service valves

 

[pmuzz63]

I find that squealing is normally the washer, so I reckon you've cracked it.

 

[iiplumbing]

Depending on the tap age, it could be play in the stem of the valve.

If you install a new washer it will help support the sides and therefore stop the "chatter", maybe also change the "o" ring inside the stem but I suspect the body of the tap will have worn slightly.

Russ

 

[REDSAW]

chattering washer syndrome, the washers are not the right type hole in middle too loose!!