an incredible concept.

I had a similar idea, only with conveyors. I came up with it in 2022, while in the army. I haven't gotten around to it yet, it's not my level of programming)

From my tests, above-ground pipes seem to pump liquids a little faster, but that's only because of the acceleration rate during the pumping process. After a moment the speed equalizes, but the above-ground pipes are ahead because they start pumping at full capacity a little earlier.
Very cool mod.

Glad some people really love this mod, here's a bit more backstory to those interested:

https://discord.com/channels/139677590393716737/306402592265732098/1363151974236819496
https://discord.com/channels/139677590393716737/1217399815370182696/1364261263622017156
https://discord.com/channels/139677590393716737/1217399815370182696/1366149287288770590

Currently there are no plans to anything with conveyors, and as for pumps there should be no actual difference, there is no artificial delay or speed increase.

i'm back again to say this mod is great and is another one of those things that should have been in the base game. seriously factorio is one of the best developed games ever made and yet the modding community constantly outdoes the developers themselves. i will always be using this mod. i hope its possible in the far future that this mod will support all the different pipes from angels but perhaps that is gonna be too much to ask.