About 40 percent of the water you use in your home gets flushed down the toilet. That amounts to more than 4 billion gallons of water each day in the U.S.A alone.
The U.S. law (Water Supply (Water Fittings) Regulations 1999) now mandates that all new toilets installed for residential use be minimal-flush toilets using around 4.5 liters.
Conventional toilets generally use 3.5 to 5 gallons (sometimes more) of water per flush, while low-flush toilets use 1.6 gallons of water or less. If you're not building a new home, you can still benefit by installing one of these toilets.
Still have an old toilet? You can save more than 1 gallon of water per flush with a displacement device -- a brick or plastic milk jug filled with water or pebbles placed in the toilet tank to reduce the amount of water used per flush.
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