Talk:Pump (BC)/@comment-220.255.2.117-20121011114208/@comment-5477397-20121011120034

That has happened to me a few times, I'm not sure why it happens exactly, but I usually remove the pump block, and place it back down, sometimes a couple of blocks adjacent from where it initially was. That usually gets it to work. Also, if you haven't already, make sure there is a water source block immediately beneath it.