Man seeing that first video on fuel quality has been an ongoing fear of mine for a quite a few years. I've always tried to frequent high volume diesel stations only, because of it. However apparently its worse then I thought. :/
Either way, it would be great if we had a drainage system in place instead of having to retrofit our own. I'm surprised with the dual filter setup fords have they see this many issues. My TDI I used to own was rock solid, and I've never heard of a contamination issue from dirt or water from my years at TDIclub, just the ole friend/wife/dealership gas in the tank ordeal.
I've seen nozzle vids before, however not the actual spraying to see the patterns. Very cool!