This article is from the public number: NetEase Airlines (ID: wyair163) , author: curtains, title figure from: Oriental IC
Aircraft water tanks have recently become the focus of attention in the news. First, the HunterCollege Food Policy Center surveyed 23 airlines and found that most airlines’ water did not meet safety standards.
The U.S. Environmental Protection Agency surveyed 158 aircraftBox, said that E. coli in 13% of the water exceeded the standard. Do not drink or even wash your hands.
Not even washing your hands?
Photography: Pull the curtains
It ’s disgusting to think about E.coli on your hand every time you come out of the toilet—we can prepare wet tissues for dirty hands, but is it necessary to refuse to drink coffee and hot water on the plane from today?
This also raises two questions. Where does the water on the plane come from? Is it reliable?
Water tanks are provided on modern medium- and large-scale civil airliners for drinking and toileting.
The water tank is not large. For example, the water tank of the Boeing 737-800 is generally 60 US gallons, which is about 230 liters-the water is sinking, it takes up more space and consumes fuel.
Korean Airlines’ “Waterwheel”
Photography: Pull the curtains
The water in the aircraft tank is “clear water”, not drinking water.
Whether it is delivered toThe toilet or kitchen water is from a water tank. So if you go to the toilet on the plane, sometimes you can see a warm reminder that is not drinking water.
There are galleys at both ends of the cabin, where clean water will be filtered to become drinking water, or you can heat it with a kettle-when the stewardess in the cabin asks if you want coffee or tea, This is how the water comes.
Hot water, hot water and warm water are in the hands of the flight attendants, because there are water heaters and ice cubes in the aircraft’s kitchen, and sometimes mineral water is poured directly.
Sometimes, some people suggest not to drink the heated water on the plane, because it is difficult to determine how often the water heater and coffee maker are cleaned up. Different) , and considering that the air pressure in the cabin is not a standard atmospheric pressure during the flight, the boiling point of water will be lower , so we ca n’t reach the “burning in our impression “standard.
Many Chinese passengers like to drink warm water. Guess if you want to keep hot water cool? ——Experienced flight attendants will tell you: Mix cold water into hot water!
So, if you think the taste of warm water in your hand is “not very authentic”, then it is justified. But where does the water in the water tank come from?
Water scooter at Hong Kong Airport
Photography: Pull the curtains
Before takeoff, the service company’s “water truck” is responsible for adding fresh water to the aircraft. After landing, there will also be a “sewage truck” responsible for taking away the wastewater.
These vehicles are less common because airplanes do not need to clean up pollution every time. Next to the flight attendant’s station, there is a “cleaning display”. Only when the sewage reaches a certain proportion will service vehicles be summoned.