I am trying to figure out a way to fix this. Whenever I leave the server some chunks unload before others and my pipes disconnect where the chunk boundaries are. They don't lose connection where they normally do, just a little space between the chunk boundaries. Is there any method to prevent this without chunk loaders? My server doesn't allow them and I was wondering if there was any way to prevent this. I've tried a double chest (items are only pulled from halves of it depending which half pipes are hooked up to) and regular chests won't work because they don't go through chunk boundaries. Is there any device or trick that could solve this? Thanks! I'm playing the 1.6.4 DW20 pack by the way.