Water efficiency devices are those with built-in functions or that reduce the amount of water used. The bathroom is where the most water is used in the house and water efficiency can be as simple as dual flush toilets.
These devices have evolved over time and water efficient shower heads save 3-13 litres of water per minute while still offering a luxurious experience. As well the water saving there is a reduction in energy use as your hot water system doesn’t need to heat the same amount of water.
14. Garden
16. Rainwater