If you leave this page, the information you have entered will not be saved!
Are you sure you want to leave this page?
This doesn't directly answer your question, but you can take care of the problem and save yourself a bunch of water by replacing your whole flushing mechanism, with one of these dual-flush jobbies. I replaced mine a while back and am really happy with it. It has different buttons for flushing No. 1 and No. 2.