Many thanks to Paul Stahl Jr, for sending us this modification manual for the C-109 fuel transport, an modified verison of the B-24 bomber. His father, Paul Stahl Sr, was the project engineer for the C-109.
Consolidated C-109 Gallery
Page 23 - Diagram Fuel System
This diagram shows how the various fuel tanks within the C-109 were connectiong, including the cargo tanks and normal fuel tanks