Thanks for the update..
None of the electro/hydraulic injectors like water, not just the 6.0.. Even the 7.3 would give up the fight when water was part of the fuel supply.. The HUIE injectors in the 7.3 more forgiving, but changed out plenty because of water and debis causing failures, gasoline fills or blends too
The HPOP has a water drain, and should be checked/drained at every service IMO, or even more if your not certain of the fuel suppliers if traveling ect, or, if the tank is at lower levels consistently. Wet/cold/humid climates or conditions when buying fuel would have me giving the drain a quick check at regular intervals as well. It's better to check and/or take fuel samples to better insure any water intrusion from anything from contaminated fuel cans (seen that a bunch), transfer tanks w/without filters, to fuel stations that may be the culprit if they don't move alot of fuel volumes. Also Bio diesel if not the correct blend.
The LCF trucks use a knurled fuel plug that makes a 'quick' check a breeze, more so if you should get a WIF light and need to drain it ASAP.. It's a direct replacement for the OEM 6.0 plug and can be finger tightened. It also has a 'T' end that keeps it from dropping out and helps to wick the fuel away from the frame and HPOP when draining..
Here's a pic of the upgrade plug.