Right, I've recently moved into a new flat in London and it's time the drain was unblocked but I just cannot figure out how to take the drain cover off. If someone could let me know so I don't end trying to force it out and possibly breaking it in the process, that would be great.
I've Googled 'how to remove a drain cover' but there seems like so many types and I have no idea which mine is.
Here's a couple of pictures of the type of drain cover in question.