Who is responsible for draining the potable water system each night?

The responsibility for draining the potable water system each night typically falls to the Airport Operations team. This task is part of routine maintenance procedures aimed at ensuring the water supply remains clean and safe for passenger and crew use. The draining process helps prevent contamination and the growth of bacteria in the water system, particularly in aircraft that may be parked for extended periods overnight.

While the flight crew is primarily occupied with operational duties and the ground crew and maintenance staff have their respective roles focused on immediate safety and mechanical issues, Airport Operations oversees the overall management of airport facilities, including such maintenance tasks related to potable water. This systematic approach protects public health and preserves the integrity of the aircraft systems.