How do I reduce the amount of water in my flush?
Depending on your brand of toilet you can do this many ways. You can reduce the amount of water you let in via your inlet valve by decreasing the height of the float. If you have an old outlet valve you can replace it with a new valve which contains a full flush and a half flush. Finally with many outlet valves you can adjust the amount of water which is let out. Please contact the manufacturer to see if your valve can be adjusted.