Sometimes toilets confuse me

I hope that with the title of this post I did not lead you to believe that I am unable to work out the general use of toilets. I am happy to report that I have been toilet trained for approximately 34ish years (I say ish as I thought an early morning call to my mum asking when I stopped wearing nappies was not the greatest way for either of us to start the day)

I write this post in the hope that someone will help me figure out the dual flush on my toilet at home because after almost two years of living here I still cannot for the love of Ford Pills work out which is the half and which is the full flush button. They seem to both flush the same amount of water and run for a similar time to fill the cistern back up. This could however just be due to the landlord-DIY-ness of our rental house... but then again I find toilets out in the world also to be quite confusing... Stay with me.

Here is a rendering of our cistern.. (check out my mad Paint skillz!)



Now at first glance obviously the small button is the half flush because it is smaller and the large is the full because it is larger right? OR the small button is the full because it is a whole circle type of shape & the larger button is the half as it has a bit missing off the end and therefore not ‘whole’... Please note that earlier I stated there is no real discernible difference in the amount of water released by either button.

To further my confusion there are buttons like the following (again with the Paint, at least this time they were circles and easier to 'draw')



Now I have used commodes with both of these buttons at various locales, and through my er ‘research’ I have concluded that the larger button is in fact the smaller flush... I think...

God I really just don’t know, why can’t we just push the button halfway down instead?

Sometimes its the big issues with me and then other times... there is toilet cistern confusion..

Am I the only one that becomes confused about this stuff?