Talk:Sorting Machine/@comment-74.74.101.91-20121112053850/@comment-96.10.59.140-20121113062723

1. You require a Transposer to remove items from chests, or machines. The transposers then output the item into the connected Pneumatic Tube which can then be connected to your sorter to send items along their way.

2. Pneumatic Tubes have built in routing systems. If your items do not have a valid destination to go to, they will return to the sending block, be it a transposer sucking an item out of a machine, or passing through a Filter. Valid destinations are other machines with empty slots, or an empty chest.

3. When the items are being sent back to the sending block, if it is a Sorting Machine, Filter, Transposer, or any RedPower machine block, the items will be held, and the red light will appear. This indicates that you have items jammed, and that you need a valid destination for them to go to. Breaking a block that is holding items will result in the items being dropped.