A plasma duct that works with thruster plasma from fusion thrusters mod.
Mods introducing new content into the game.
Transportation of the player, be it vehicles or teleporters.
Augmented or new ways of transporting materials - belts, inserters, pipes!
Things related to oil and other fluids.
Water pipes connect to the Plasma ducts exit points on the reactors and thrusters.
Are you sure? Because they don't for me. Do you have a mod that reworks pipe connections or something?
Deactivated all of them weird.