Pumps draw water from the level below them. In your map it shows the space which the water would normally be taken from has a wall in it. So no water is taken up. Hence no water is used.
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Submitted by: THLawrence - 2008-04-13
Pumps draw water from the level below them. In your map it shows the space which the water would normally be taken from has a wall in it. So no water is taken up. Hence no water is used.
Submitted by: Mechanoid - 2008-04-13
THLawrence is correct. The tiles directly south are not empty space, and thus block the pumps' function.