Great post, learn a lot from it.

Some questions:

Also, there are several other entities that can interact with liquids:
- mining drills with sulfuric acid (200 capacity, -100..100 pressure)
- assemblies, chemical plants, oil refineries (input/output - same mechanic as with pump (speed? - untested ...

Actually, if I understand Factorio liquid physics correctly, inserting a single pipe segment between two pumps should not affect pumping speed. Pump moves 200 liquid per tick, which is exactly a pipe volume, so everything *should* run smoothly.


No, volume of a pipe is 100.

[Fluids, Pipes and ...