Fluids amount ?
 

Hello,

I'm just wondering what amount of still water/toilet flushing fluid is an aircraft filled in for a transatlantic flight, let's say 8 hours ?
Amount in liters/kg/pounds.

Is there a rule of thumb, i.e passenger per flight hour for example ?

Keep safe :)

Viking
I cannot help with any figures but a factor to consider is whether your flight will be carrying enough water to cover the outbound sector as well as the return, some destinations are unable to provide water of acceptable quality.
An operator once deleted one tank as they thought that two were enough to save weight, then an airports supply became contaminated and they could no longer take on water there, it gave them a major operational problem.

A typical load on a transatlantic 777 would be about 1300L of potable water. This is for use as a flush in the lavs & washing, and also for making tea/coffee.
Hope this helps.
Some airlines reduce the amount based on load/sector length. Others just fill it up.

A 744 had 3 x 100gal tanks, some operators had 4 tanks so 300 - 400 gals of potable water if filled up. As Hovis says some operators adjusted the water qty to suit the sector length and pax load.

Thank you for your replies all of you:)

It means a possible amount of up to 1.5 tons to carry on and keep at a positive temperature during the flight.
Might be even heavier on Emirates A 380, "offering" in flight shower possibilities ...

I guess the "potable" water means "pure water", not drinkable either than heated for hot bewerages; otherwise when and how were the tanks desinfected ?
The cabin air is filtered, same for the water with carbon filters ?

Sorry to be so curious and picky :hmm:

Potable means drinkable. There is a requirement for regular disinfecting of the potable water system on aircraft . I seem to recall it was at an 'A' check last time I was involved. Also many airlines dump the left over water when the aircraft is going to be on the ground for some time and refill it prior to the next flight.

There are filter canisters in every galley, can't remember if they are carbon, they are changed regularly according to the aircraft maintenance schedule.

Had an A300 freaghter that had been in the desert for two years prior to conversion. When we tried the water a green slime came out of the tap. I think it took several goes to get the tank sterile again and we only drank bottled water.

'Fluids' = Fellows of the Lion and Unicorn Intimate Drinking Society.
Edit to add: Anyone remember it? 'The Larkins; ran between 1958 and 1964; starring Peggy Mount and David Kossof.