Originally Posted by Oilandgasman
Jet 1 is stored in tanks, pumped and transfered in it own dedicated pipework and was not in my days physically connected to any other pipework.
I was also in the industry for a number of years (outside the UK). Where I worked, the Jet-A1 was kept totally separate from the other products within the refinery, but was transfered to the distribution centre via a multi-product pipeline.
Pinkman's concerns about possible contamination could certainly have applied there.