How to open up toilet waste pipe please

[Vee44]

How to open this toilet pipe please?
I need to retrieve a key I dropped down here.
I think its sitting in the grooves of the flexible pipe.
Will this pipe unscrew easily, I can probably untwist it OK.
But then after is it easy to reconnect and ensure its water tight?

Any advice gratefully received.

Many thanks
V

 

[ShaunCorbs]

Should just pull of the toilet if you have enough space if not the toilet will have to come out

 

[snowhead]

You''ll need to separate A from B.
There will need to be a small gap where the green arrow is.
If there isn't enough room to move A all the way back, you should be able to twist it up or down to release it.

If not, as ,the toilet pan will have to come out.

 

[Vee44]

Theres about 2/3 inches behind the curved hard pipe.

So I can just pull it out?

And then I can just push it back into place after?

 

[Last Plumber]

Yes it will push off. Put something under it as you will lose a bit of water. Towels if you can't find a tray.