WEI calculations based on: 2009 for Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Lithuania, Former Yugoslav Republic of Macedonia, Luxembourg, Malta, Poland, Romania, and Slovenia; 2008 for Hungary, the Netherlands, and Spain; 2007 for Sweden, Belgium, France, Germany, Greece, Ireland, Latvia, and Slovakia; 2006 for England and Wales, and Switzerland; 2005 for Iceland; 2001 for Turkey; 1999 for Austria and Finland; 1998 for Italy and Portugal; 1985 for Norway.
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Decrease your toilet’s water-use by dropping a hippo or other displacement device into the cistern. If you’re planning on buying a new toilet, consider a water efficient one with a dual flush.
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