Careful though, some of those low-flush toilets you need to flush twice they're so weak. It should be pretty clear when you buy that it's a low-flusher but check to make sure it works well.
These toilets save about 1.5gallons per flush, unless you have a super old toilet in which case it could save 4.5gallons or more per flush. The average toilet is flushed 5 times a day. Average savings per toilet per year: 2800gallons of water!
You Can Prevent Global Warming by Jeffrey Langholz Ph.D. and Kelly Tur
You can also create a dual flush toilet that saves a lot:
http://www.youtube.com/watch?v=JlK16_idMaI
http://www.youtube.com/watch?v=lY9PMCzzi24
reference link:
http://www.treehugger.com/files/2005/08/the_best_low-fl.php
thecitizen says:
Rebates from $30-150 a year are available for those who opt to replace standard three-gallon flush toilets with low-flow models that use only about half as much water. Find out more at www.bewaterwise.com/rebates01.html
posted 07/21/08 at 11:57 AM