Alot of airports used to make it to cut costs. Some also had special drain systems for reclaiming the fluid. Others had a subcontractor company come and suck it

Alot of airports used to make it to cut costs. Some also had special drain systems for reclaiming the fluid. Others had a subcontractor company come and suck it up as you sprayed the planes. There was also type 1 and type 2: Type 1 was the watery antifreeze like stuff, type 2 was jelly-like meant to spray on the plane as it was waiting to take off to keep the ice from reforming. Type 2 was much more expensive than type 1 and the first thing you learn is to not use type 2 unless told to. There was also IR tents at some of the NYC area airports but they only served planes smaller than a 737. I think the port authority removed them about 10 years ago.