Board Thread:General Discussion/@comment-198.144.156.59-20130621215705/@comment-8540798-20130622115129

Have the Export Bus only exporting those ingots to a Chest of some kind, a Wooden transport pipe powered by either an Engine or Autarchic Gate to extract the ingots, and attach a Void Transport Pipe to the wooden pipe. It'll take a while, but it's automated deletion!

Oh, and I recommend keeping the tin ingots you're keeping in a seperate chest(s) somewhere so the ME System doesn't send those for deletion.