I have a tank with crude oil surrounded in plastic and cooled by wheezeworts that is used only as a coolant for my metal refinery. When I constructed it, the tank was full. I know that the surface of the liquid could have been lowered by one tile due to the length of the pipe leading to my oil refinery, but not by two tiles. However, I noticed that since this upgrade (or preview built I should say) the tank is gradually losing crude oil. I investigated the issue and it appears cru