Photo is a Bristan washbasin tap that I’ve attempted to replace the washer for.
I was under the impression that all “traditional”-type taps used the same washers, differing only in the 3/8, 1/2 and 3/4-inch diameter. But fitting an off-the-shelf 1/2-inch washer on here doesn’t seem right. It is a loose fit pushing over the pointed end of the shaft, and as you can see it isn’t thick enough - unless it’s supposed to be like that.
In use it basically works but “sings”, I.e. a high-frequency tone.
What do you think?

I was under the impression that all “traditional”-type taps used the same washers, differing only in the 3/8, 1/2 and 3/4-inch diameter. But fitting an off-the-shelf 1/2-inch washer on here doesn’t seem right. It is a loose fit pushing over the pointed end of the shaft, and as you can see it isn’t thick enough - unless it’s supposed to be like that.
In use it basically works but “sings”, I.e. a high-frequency tone.
What do you think?
