Between 5-8% of the toilets in the UK are leaky and most are going unnoticed. As a leaky toilet flush loses around 215 and 400 litres (between 1.72-3.2 kg/CO2) of fresh water each day, this can be a serious drain on your water bill – as well as the environment. For the average size family this adds up to 876 kg/CO2 of wasted water each year!
Sources: Waterwise – Save Water, Waterwise – Net Zero and the role of Water Efficiency, Waterwise – Leaky Loos