So I was thinking about waterfalls and the mystery of pump range and I had an idea of how to use a full sized pump to move magma without ever moving anything else. I warn you that this is build has problems.  There is a superior approach using mini pumps, but I thought this idea could be interesting. The way this works is by making sure the tile under the pump is magma while making sure there is a liquid in the top right tile.  The automation works by opening the door for 0.3 se