A new generation of energy-efficient water supply equipment. High-rise buildings without water tower, fire deep well pump, constant pressure water supply is mainly used for real-time water conditions require closed-loop to adjust the pump speed to the occasion, well-known brands of inverters, intelligent controllers, pressure sensors, and pumps the closed-loop control system. Multi-pump control, the stability of the pipe network pressure and improve water quality, reduce secondary pollution, high efficiency energy-saving, unattended without tower water supply automatic control system.