I've got an old toilet which I have been trying to ignore failing as I plan
to redecorate the bathroom and replace the entire suite at that time, how
ever it has been giving lots of problems flushing often taking 10-15
attempts. So can wait no longer, replacing the toilet is not an option
because that would mean replacing the tiles around the toilet which I can't
get any more, in fact I cant even get that shape any more, So I guess I need
to fix the toilet.



Looking in the water reservoir I can see a back bowl shaped object I guess
about 6 inches in diameter. The base of the plunger is exiting at this point
and the toilet handle is attached to that

On the right hand side of the plunger container there is a U shaped pipe
with a flattish top. The other end of this pipe is connected to the bottom
part of the reservoir where an approximately 1 foot pipe connects to the
back of the actual toilet. My question is can I still get new siphon. There
is one on Screw fix looks something like it

http://www.screwfix.com/sfd/i/cat/95/p2635095_l.jpg



Is it lightly to fit? both pipe sizes and physically in the reservoir
changes and I'm stuffed?

Also I have quite a big water reservoir compared to modern toilets will a
modern siphon still work as well as mine did originally? Or will the water
through put be limited.

Lastly when I replace the siphon am I lightly to need any other pieces such
as a WC Pan Connector Straight





Thanks