Talk:Redstone Engine/@comment-80.202.85.151-20120830162235/@comment-63.204.151.5-20121023220315

The Minecraft world loads in "chunks", and only chunks near you will be loaded. What is happening is your pump station is effectively put on "pause" until the chunk it is in is loaded, which is why it only works if you are near it. As mentioned above, using a world anchor will keep a 3x3 area of chunks around it loaded at all times (assuming you're in the same dimension), so you can keep your pump station working at all times.