We do all this through the reclaimed water and rainwater systems, allowing tap water to be used for consumption while reclaimed water (recycled wastewater) and rainwater can be used for washing. If this approach of using secondary water could be generally introduced into private homes, it would greatly lower the demand for water.
方法是推動「中水」或「雨水」二元系統，讓自來水供應飲用，中水（回收污水）或雨水供應沖洗，如果「次要用水」的做法能普遍推廣於家庭，將可大幅降低用水需求。