Any toilet that saves water is the best toilet for our earth. Believe it or not or fresh water supply. I know what you are thinking, Not on this Blue Earth, I have looked at globe before and there is a ton of blue." Yes there is but that water is not potable which means it has to go through a process called desalination. This process is very expensive and very limited. Therefore saving water is crucial for the survival of the earth and to keep water prices from getting out of hand. The easiest and the best way to start water saving is with a toilet. Toilets account for roughly 30% of a home's water usage. Dual flush toilets are a great for saving water. So good they are mandatory in Australia and Israel, two very dry places that don't have a lot of water.