I'm not 100% sure about this since I didn't actually sea it (haha) but after I demolished a 4 pump desalinization setup I noticed a short time later a bunch of boilers for oil production 🌊 weren't working and the pipes had sea water in them. There was no way sea water gets pumped into anything but directly a desalinator so I'm guess the trucks dumped the sea water into empty pipes? Also possible I did quick remove and the fluids got put there?
I haven't really been able to repro it but I don't have a good test factory for things like that at the moment.