强降雨再袭武汉，主力泵站仅少量开机

Core Viewpoint - Wuhan's drainage system effectively managed recent heavy rainfall with minimal operation of pumping stations, indicating improved efficiency in urban water management [1][2][5]. Group 1: Drainage Operations - On May 31, during heavy rainfall, major pumping stations like Tangxun Lake and Jiangnan only operated a few units, demonstrating a lower water inflow compared to previous years [1]. - Tangxun Lake Pump Station operated for 32 hours, discharging 864,000 cubic meters of water, with only 2 out of 15 units running [1]. - The total drainage volume from city-owned pumping stations from 7 AM to 7 PM on May 31 was 1.9 million cubic meters, with only 6 units operating in 3 stations by 7 PM [2]. Group 2: Infrastructure Improvements - Prior to the rainfall, Wuhan's water management department enhanced drainage infrastructure by clearing blockages and maintaining key facilities, resulting in a significant reduction in urban flooding [5]. - The city has completed over 5,000 kilometers of drainage networks and 600,000 inspection wells, while increasing pumping capacity by 280 cubic meters per second [5]. - Residents have noted a marked improvement in drainage efficiency, with less surface water accumulation during heavy rains [5].