Gatwick Airport in the UK experiences a water outage after a power outage affects a water treatment plant in south east England, according to multiple reports. The lack of water disrupts basic airport facilities, including toilets, which are left out of order. Some food service operations are also impacted: restaurants at the airport are forced to close during the outage. The reports describe the disruption as resulting from the treatment plant losing power, which limits the supply of water to parts of the airport infrastructure. The outlets also indicate the outages occur on Sunday, with affected areas including restrooms and dining facilities. While the specific duration of the outage is not detailed in the provided accounts, the common thread across sources is that the disruption stems from the power-related problem at the water treatment facility and leads to operational limitations at Gatwick. No additional causes, assessments, or recovery timelines are included in the excerpts.