There are three main ways to realise the goal of water neutrality.
Reducing water use. Increasing a householder’s awareness of the need for water neutrality can encourage the adoption of water-saving behaviours. This would include the fitting of smart meters and water-efficient home products.
Reusing water by harvesting rainwater. Householders could also recycle greywater and blackwater.
Offsetting demand by investing in schemes that save water in the local region. These schemes include retrofitting existing buildings with water-efficient devices and water reuse systems. The aim should be to save water equal to the remaining mains water usage of the new development.