Talk:Red Power 2 - Pneumatic Tube Tutorial/@comment-62.163.127.174-20121208112649/@comment-98.229.140.172-20121211014142

You may be using redstone tubes, which in fact require a redpower source (i would use a timer if you just want a steady stream of cobble since you can edit the amount of time between the timer intervals) if not my friend i dont know what