Can you drink toilet water on a plane?

tl;dr: The airplane tap water can be contaminated, to err on the safe side, don't drink it, don't use it to brush your teeth.



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Why is it bad for you? Airplane tap water is stored in on-board tanks that house the liquid for tea, coffee, and to service the restrooms. These tanks are often stored without cleaning for long periods at a time, leading to the potential build-up of bacteria in the stagnating water.

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To be extra safe, the CUNY researchers advised people never to drink water onboard a plane that does not come from a sealed bottle. They also said passengers should not drink coffee or tea brewed on their flight, and that they should even use hand sanitizer instead of washing their hands with onboard water.

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An airplane bathroom does not use the water like a regular bathroom. Instead, it uses a vacuum system, and when it flushes it moves into a septic tank that is on the airplane. The pipes used are much smaller than regular plumbing pipes and they can be placed in any direction since they do not use gravity and water.

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Don't clean your teeth in the sink The flight attendant warned: Do not clean your teeth in an airplane loo. The water on a plane all comes from the same water tank and it is not filtered.

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Don't use airplane bathroom water to wash your face (which you should do before putting anything on it).

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Greywater is typically ejected from the plane while in flight via drain mast. This is an external vertical winglet on the airplane that is heated to prevent the water from freezing. The ejected water typically evaporates within the atmosphere.

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Boarding and While Onboard
Avoid caffeine, alcohol and soft drinks to prevent frequent trips to the bathroom. Consider limiting fluids before a flight. Travelers choosing this option should use caution to avoid dehydration, and be sure to re-hydrate upon arrival at the destination.

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As for the nuts and bolts: Airlines use bleach-filled cleaning products similar to what's used to clean hotel rooms. The blue juice, aka aqua-colored liquid that washes everything down the toilet when you flush, serves as a deodorizer and as a catalyst to separate liquid from solid waste.

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To be extra safe, the CUNY researchers advised people never to drink water onboard a plane that does not come from a sealed bottle. They also said passengers should not drink coffee or tea brewed on their flight, and that they should even use hand sanitizer instead of washing their hands with onboard water.

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Airplane cabins have very low humidity levels. To counteract the dryness, the general rule of thumb is to drink 8 ounces of water per hour (alternating with electrolyte-filled fluids)?. Koncilja further advises travelers to avoid diuretics such as coffee and alcohol in-flight.

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Now when you flush an airplane toilet, a trapdoor in the base opens, liquid is released, and everything is sucked out faster than a Formula 1 race car. Waste whizzes through the plumbing to the rear of the plane, where it's stored in sealed tanks, well away from passengers, until the plane touches down.

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The two airlines that feature onboard showers are Emirates and Etihad, both carriers from the United Arab Emirates. Showers are found solely on their Airbus A380 aircraft. They are reserved for passengers travelling in First Class (on both Emirates and Etihad) and The Residence (on Etihad only).

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Airlines are required to provide safe drinking water for passengers and crew because of the Aircraft Drinking Water Rule, a federal government policy which dates back to 2011. The airlines were given “water health scores” ranging from a 5 (the highest score) to a 0 (the lowest).

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The Airport and Airplanes are Full of Germs Airplanes are just as dirty. Studies have shown bacteria and viruses living on armrests, seat belts, window shades, tray tables, toilet handles, and more for DAYS.

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Coffee and other caffeinated drinks, alcohol, carbonated beverages, artificial sweeteners, and spicy or acidic foods are often bladder triggers. On airplanes, be especially careful not to overdo the coffee, tea, alcohol, and soft drinks. Also, try to book an aisle seat near a lavatory.

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In this case, the aircraft will try to do it overland (not water) or away from populated areas, as it is the equivalent of dumping thousands of liters of petrol onto an urban area. The FAA mentions explicitly that any dumping can't occur under 2,000 feet.

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It's not uncommon to see planes being sprayed before takeoff. The spray is a heated mixture of glycol and water. It has a lower freezing temperature than just water. This breaks off ice already formed and prevents more from building up.

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The simple answer is: that red liquid is a fire-retardant chemical that's color dyed so that it's easy to see from the ground and from the air. That helps firefighters see where it's going, and makes it easier to see where it's been dumped already.

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No, airplanes (commercial aviation) do not have cameras in the bathrooms, or as they are called, “lavatories”. That would be illegal. If your finger, “touches” the reflection of your finger, it only means that there isn't a layer of thick glass over the reflective material.

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You can typically spend 30 minutes in the shower room (though in theory I suppose you could spend longer if it's not otherwise booked), though you only get five minutes of running water. More on that later.

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Airline pilots take turns using the bathroom nearest the cockpit during a flight. There are no bathrooms installed in the cockpit. For airplanes with a single pilot, diapers, catheters, or collection devices are used if they are unable to land to use the airport bathroom.

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Because the TSA considers the nut spread a liquid, plane passengers must limit the amount they bring in their carry-ons. Like all other liquids, passengers are limited to 3.4 oz or less of peanut butter in their carry-on bag, but can also put the snack in their checked baggage.

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