Being resourceful Under normal circumstances, rainwater and reclaimed water each does its own job, but when there is a water shortage, for example during a dry spell when there's not enough rain to water the lawns, when students are on vacation or when there is not enough reclaimed water, each system can come to the aid of the other.
左右逢源雨水、中水在正常情況下各司其職，但當水源不足時，例如缺水期雨量不敷澆灌使用，或學生放假，中水量不足，則各系統間也可以互相支援。