Board Thread:Questions and Answers/@comment-68.195.127.46-20140220052435/@comment-1757231-20140220145220

68.195.127.46 wrote: I have a High Voltage Solar Array Factory and  a 1,000+ hour world, but the biggest mystery for me is still a mystery! When you have a filter that's pumping stacks and stacks of items into a super long stretch of pneumatic tubing, and you fill the chest it's attached to, you'll still have lots of stacks of loot inside those tubes. When the chest fills, all the extra items turn around and go back into the filter. It seems to have some kind of unlimited inventory that never fills and never lags anything. My big concern is obviously, are my extra items ACTUALLY being stored in the EXACT amounts that I had left over inside the pneumatic tubes when the output chest filled? Or does it save up to a certain amount, and I've been losing trillions+ EMC this whole time? No, the filter will bounce back the items. Once there is no empty inventory for Pneumatic Tubes to go to, the Filter will stop ommitting items. Therefore you aren't actually losing anything.