According to the Water Efficiency Labelling and Standards (WELS) website, WELS is "...Australia's urban water saving scheme. WELS reduces demand for high quality drinkable water by informing consumers about water efficiency at the point of sale." (Waterrating.gov.au, 2018)
For more information visit: http://www.waterrating.gov.au/Reference
Waterrating.gov.au. (2018). About. [online] Available at: http://www.waterrating.gov.au/about [Accessed 14 Mar. 2018].