Most of the pipes are here for aesthetic, but they're technically all wired correctly and are working. Most of them (the largest ones) are from Rimatomics and linked between the nuclear power plant in the middle and the cooling, cores and turbines on top. The rest is from the Vanilla Expanded mods. Also there are 4 rings of hidden pipes in the walls, connecting each other so that I can plug every machines anywhere and have them supplied what they need. I wish I still had that save so I could show the pipes routes.