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Thread: A380 flight ‘completely runs out of water’
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Old Sep 21, 2019 | 8:40 pm
  #22  
Lomapaseo
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Originally Posted by BingBongBoy
Waste water that is used during toilet flushing is held in black water tanks, and empties by the "honey wagon" on arrival at destination. It is NOT expelled from the aircraft like the old fashioned trains.

Water from hand washing in sinks and galley sinks is expelled through super heated drain lines into the outside air.

I sure as hell nobody does this in the air. No way would super heated even account for outside air temps -90 degrees and there would be lots of dents and holes in aft surfaces from ice blivets building up behind drains
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