Factorio Forums

I was messing around in a Lab Tile world, and was experimenting with pipes and flow, and how inline pumps affected flow. I noticed that the pipe attached to the input of the pump would always show stagnant fluid and no visual flow. I tried this without the Infinity Pipes and just an offshore pump and tank as well, no difference. Tried at different flow rates, no change.

Here's an example with multiple fluids, all having the same issue: