Hi
I have a Wickes bathroom mixer tap and the cartridge has gone, i think its what they call a style mixer as it goes left and right (hot & cold) and up and down (on or off).
I have take the head of the tap of and exposed the top of the mixer however the collar that surrounds the mixer has no indents for a wrench its perfectly round, the cartridge itself seems to have locating holes for a removal tool!? How the hell does this thing come out…………… Please help me not waste £40 on a plumber!
Collar with no indents:
Top of cartridge: