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[Skyrage]

...apparently they stopped working for me...

Placing a floodgate next to a river tile and then opening it is a no-go. It used to work perfectly fine a couple of versions ago but now the water just refuses to pass through.

[GrimmSweeper]

Try it with a pair of floodgates instead.

code:

~~XX

Where ~ is the river
And X are the floodgates

[FaultyLogic]

Maybe the square where you placed your floodgate has a higher elevation then the river ? In my first fortress the water only came through the gate during the seasonly floods. But in my current fort, if I open the floodgate the farms are instantly flooded. Very convenient.

[Pacho]

A floodgate needs to have a channel on both sides or it won't work.

[GrimmSweeper]

Not exactly. There has to be at least a channel in-between a water source and a floodgate in order for it to flood a room once opened.

Otherwise it acts as a water catcher, holding back the water from the river. Much like the usual channel defense with farms will catch dwarven floods.

code:

###_###
###D###
#.....#
#.....#
_X....#
#.....#
#.....#
#######

With this system in place, even if the floodgate is destroyed the farthest it will flood will be that room up to that channel in front of the door.

[ December 19, 2006: Message edited by: GrimmSweeper ]

[Maximus]

Yeah, it has to go river-channel-floodgate.  Straight river-floodgate won't work.  The channel can either be an actual channel or a floodgate, which is why river-floodgate-floodgate works.

[Skyrage]

Aha, that explains it then...

Although I could have sworn that I've never had that problem before...or maybe that was with magma   :roll:

[Pacho]

quote:Originally posted by GrimmSweeper:
<STRONG>Not exactly. There has to be at least a channel in-between a water source and a floodgate in order for it to flood a room once opened.
[ December 19, 2006: Message edited by: GrimmSweeper ]</STRONG>

Yeah, that's what I meant.  I don't know why I said both sides =[

[Maximus]

With magma, you want to do magma-floodgate-channel-floodgate (or at least magma-floodgate-floodgate), or else you'll lose the miner.