On page 7 so fAr and can't believe no one has mentioned black tank indicator that actually work. Also indicators should have more graduations, not just by 1/3rds.
A more detailed owners manual would be nice with online access to the schematics so when you do repairs or upgrades yor don't have to guess where the wiring is or the studs are.
Bruce & Lori, both Retired, Charli (60 lb lap dog)
2011 F350, KR, 6.7L PSD, 6 1/2' box
2015 Mountaineer 331RLT