Pipes can only transport compatible fluids. You weren't going to put molten iron in an iron pipe, were you? Can be customized by other mods.
Mods introducing new content into the game.
Things related to oil and other fluids.
Hey, can you add a setting box for allow only plastic pipes? I would like to add toxic-sludge from Pollution Solution to the non-metal pipe list. Inert fluid works for now, but in my mind toxic-sludge would not be ok in a metal pipe ;)
