I've got a mono-lever tap on a bathroom basin which is mounted vertically o nto the porcelain (the basin is one piece with a "shelf" integrated into it ).
I'm presuming the tap fitting came with the basin, it predates my ownership of the house.
It's dripping and I want to swap out the cartridge.
Removed the tap head gear last night but then stalled when I came to seeing what I needed to do next.
I'm imagining that I need to remove the sleeve which will then give me acce ss to slide out the cartridge (assuming its a fairly standard part), but th e sleeve had a decorative cover which came off easily (probably wasn't mean to) revealing a plastic / nylon sleeve underneath apparently retaining a p lastic / nylon top of the cartridge.
On attempting to twist any bit of it, the whole tap assembly rotated, which I'm guessing is "not a good thing" so I rotated back.
Any hints on freeing these sorts of things up? It's a bit caked in mild sc ale having being in place for probably about 15 years, but I don't really w ant to end up damaging it, and with it being plastic mole grips didn't seem the idea choice. It's also "domed" so getting anything around it feels ch allenging.
Any hints? I've got WD40 in the house, and other solvents. Any use on thi s sort of scenario?