Jay Honeck wrote: brevity snip
In order to remove that ice before
departing, they had to spray over 1,800 gallons of deicing fluid on
that single DC-9.

That sounds a tad high, as if someone wasn't exactly using their
resources very efficiently, maybe trying to blast it off with pressure.
I believe I could get it done with 1600g of warm tap water and 200g of
deicer.
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- gpsman