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[DarkAvenger]

If I set a pump over an open space with water under it, does the water come up it? Does the water have to be at a certain depth before this happens?

[Joseph Miles]

http://www.dwarffortresswiki.net/index.php/Screw_pump

any depth will work, and it can't be directly under it, it needs to be one square away, directly adjacent to the side it's pumping from.

[adamantyr]

Also, if you're looking to pump from a brook/river into a wall, you'll want to be sure that the front end of the pump is enclosed in stone; exposed even diagonally will lead to a big spill. Ironically, you can use a water wheel, assemblies, and axles to drive the screw pump with it's own water flow force. A nice way to run water channels to your fortress even from a distance!

[Skizelo]

Aw, I thought somebody was asking about Archimedes Screw, and I could learn some.

[KrataLightblade]

Aw, I thought somebody was asking about Archimedes Screw, and I could learn some.

The Archimedes Screw: how Archimedes REALLY sunk the Roman ships at Syracuse, and where we get the phrase "Loose Lips Sink Ships."

...Ahem, sorry.

[tigger89]

Any idea why my architects can design my screw pumps, but my masons won't build them?  They keep canceling it because of dangerous terrain.  My set up is:

-----
-.O_-
--X--
-----

- = wall
. = empty space, with a channel above it for the next pump in line
O = the square of the pump my dwarf stands on
_ = a channel to pump from, which will have water in it when I fill it up
X = my central stairwell, which the pumps are built around.

I had grand plans for a dwarf-powered waterfall(ie, a happiness-inducing, soldier-training device) through my entrance hall and meeting hall, but I can't get the pumps to be built.  The same error occurs on every level of my 4 z-level tall tower.

[Andir]

Any idea why my architects can design my screw pumps, but my masons won't build them?  They keep canceling it because of dangerous terrain.  My set up is:

-----
-.O_-
--X--
-----

- = wall
. = empty space, with a channel above it for the next pump in line
O = the square of the pump my dwarf stands on
_ = a channel to pump from, which will have water in it when I fill it up
X = my central stairwell, which the pumps are built around.

I had grand plans for a dwarf-powered waterfall(ie, a happiness-inducing, soldier-training device) through my entrance hall and meeting hall, but I can't get the pumps to be built.  The same error occurs on every level of my 4 z-level tall tower.

Perhaps I'm missing something, but you only have a 1-tile pump?

Pumps require 2 spaces to build and 4 (maybe 3, not sure if you can put a pump against a wall and pump diagonally) spaces to run.  One space to pump from, the two spaces for the pump and a space to pump to.  The wiki really has an excellent picture of what a pump does.

Code: [Select]

####.#
#_->.#
#_.###


[tigger89]

Oh, I've got it now.  For some reason I'd mentally compressed those two tiles into one.  Well that sucks.
Next fort, I guess.

[DarkAvenger]

Yeah I see my problem too, just gonna reconstuct the pumps and floor arrangement