Got a setup at oil rig, where I have 10 oil tank on land and 20 on ship. I expected to have the on-screen setup fill ym shipbound tanks first, then when all full, it would start filling the land ones, but it still equalizes:
The tank on land should be empty, and only happens if I set the cables coming out from the ship extender is set to pull from landside, and the single land->ship cable set to only go toward ship won't overwrite the equal from land. If need more explanation, please @ me and I show via sharing.