Getting access to a tap washer

[Shiftycatz]

Hi,
I need to change the washer on one of my bathroom taps but i can't seem to find out how to get the bloody top off. From what i can gather its a pillar lever tap but all the things I've googled only seem to have the ones where you can pull a little disc off the top to gain access to the screw and mine are totally enclosed.

There's a little nub on the back but once that's off there doesn't seem to be anything to unscrew or clip off or anything.

I'll enclose a pic of the tap so you can see what i mean...

Help please it's driving me mad

 

[Ben-gee]

Once the ‘nun ‘ is off can you insert a long Allen key - there is often a grubscrew holding the head on.
Usually 2 or 2.5mm, although could be a small slotted screwdriver.

 

[Ben-gee]

Also.

I suspect that is a quarter turn tap and as such it won’t have a washer, it operates with a ceramic disc.

 

[Shiftycatz]

Oh wow, I never thought it would be such a tiny allen key. Almost bent the bugger but it came off eventually. Thank-you so much!

Now to find the correct ceramic disc!

 

[moonlight]

If you can, isolate the water supply take out the ceramic cartridge and take that and the head to your merchants.