Pumps and such

https://www.quora.com/Why-isnt-fuel-pumped-directly-into-airplanes-as-opposed-to-using-a-fuel-truck?ch=10&share=921c9974&srid=5zLed

Why aren’t more airports like this?

in a nutshell, fuel pipes to every stand is exponentially more expensive and has to be borne during construction. this makes it very difficult to recover from airlines. comparatively, fuel trucks provide a much easier cost recovery mechanism.