消防水池 meaning in English

fire cistern
fire pool
fire reservoir
fire-fighting pool
fire-water pond

About water economization , chiefly introduced new equipment , new hot water cycle system , the control of the exceed pressure of out water , reuse of grey water , reuse of rainwater , new method of setting fire - fighting poor , new kinds of water meter and its management and vacuum technology
节水方面，主要介绍了新型节水设备，新型热水循环系统，超压出水的控制，中水回用，雨水回用，消防水池的设置新方法，新型水表及管理方法，真空节水技术。