Research by ech2o confirms that the practice of estimating water savings in schools assuming three uses of the WC a day results in an overestimation of potential savings (both of water and monetary) by a factor of 2 in primary schools and up to 6 times in secondary schools. Analysing data collected from over 600 school pupils this report details the behaviour of secondary school and primary school pupils when using toilets or urinals.

When we published our ground breaking report “Is the five minute shower an urban myth?” back in February 2010 it was followed by many other organisations doing their own research that proved we were correct. We are pleased to have been at the forefront of understanding how people actually behave when showering and look forward to the same thing happening this time around WC use at schools.


Reducing WC flush volumes in schools – are we overestimating the water savings? 2015