In article ,
Peter Stockdale wrote:

Perhaps the compromise style is best. For 1s etc, quick push on handle -
half the cistern empties, for 2s etc - hold handle down - whole cistern
empties.

I've recently installed a low-volume close-coupled cisterm system
thingy... It's backwards - in that you have to push the button on the
top and keep it pushed for a short flush, or push and release for a
long flush!

I have to say, I was a little concerned that it'd be able to cope being
almost half the volume of the old one, but the close coupling obviously
lets the water get through much faster which compensates...

It's just a hassle you have to keep your finger on the button for a short
flush...

Gordon