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Author Topic: Pfft, who needs wells?  (Read 1425 times)

jez9999

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Pfft, who needs wells?
« on: May 07, 2013, 12:12:13 pm »

My hospital needed a water source.  I decided to try and get a pool of water that would be exactly 3 deep (actually for a water source alone, that isn't too helpful; but at least I can re-use this design for a pool elsewhere where I want it to be 3 or 4 deep for bathing in!)  The mechanism is: fill up 9 tiles with 7/7 water, then drop to water into a pit of 21 tiles.  Water should even out to exactly 3/7 per tile.  I will refer to drawbridges here as floodgates, as they are basically being used as floodgates.

Here's my tapping of the river:
Spoiler (click to show/hide)

The main floodgate is operated by a lever nearby to the northwest.  The channel goes down a few levels until it gets alongside the hospital after being depressurized:
Spoiler (click to show/hide)

Below, a floodgate will keep the pool of water to 21 tiles exactly, and then let the water be flushed out off the west edge of the map:
Spoiler (click to show/hide)

The main floodgate is opened and the channel fills up nicely:
Spoiler (click to show/hide)

Now fully filled up to 7/7, we're ready to close up the 9x9 section with another floodgate:
Spoiler (click to show/hide)

Why does a dusting of mud have to look identical to blood?:
Spoiler (click to show/hide)

The moment of truth; we open the retractable drawbridge to fill the water pit below:
Spoiler (click to show/hide)

Yay, it works!  All tiles have exactly level 3 water on them:
Spoiler (click to show/hide)

Only problem is the flushing mechanism didn't quite work as I'd hoped:
Spoiler (click to show/hide)

It took months for the remaining water to evaporate away so I could fill the pit again:
Spoiler (click to show/hide)

So... can anyone think of a good way to get the water flushed out of there quickly?  Even a screw pump only sucks water out of one tile so I don't think it would work properly on a 21-tile area.  My first thought is to make the base of the pool a big retractable bridge that overhangs a sewerage channel that flows from the river round the fortress, but that would be a major undertaking and I have tons of other stuff to do. :)
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slothen

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Re: Pfft, who needs wells?
« Reply #1 on: May 07, 2013, 12:27:51 pm »

screw pump should work fine as it will quickly drain the water to evaporate-able levels.

You don't need to turn the bottom into a retractable bridge, a single hole with a mechanism-controlled hatch would suffice.
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While adding magma to anything will make it dwarfy, adding the word "magma" to your post does not necessarily make it funny.
Thoughts on water
MILITARY: squad, uniform, training
"DF doesn't mold players into its image - DF merely selects those who were always ready for DF." -NW_Kohaku

jez9999

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Re: Pfft, who needs wells?
« Reply #2 on: May 07, 2013, 12:29:03 pm »

screw pump should work fine as it will quickly drain the water to evaporate-able levels.

You don't need to turn the bottom into a retractable bridge, a single hole with a mechanism-controlled hatch would suffice.
When I opened the floodgate at the bottom, it quickly drained to evaporatable levels.  Trouble is, it took months to evaporate.
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slothen

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Re: Pfft, who needs wells?
« Reply #3 on: May 07, 2013, 03:32:16 pm »

screw pump should work fine as it will quickly drain the water to evaporate-able levels.

You don't need to turn the bottom into a retractable bridge, a single hole with a mechanism-controlled hatch would suffice.
When I opened the floodgate at the bottom, it quickly drained to evaporatable levels.  Trouble is, it took months to evaporate.

double/triple the size of the evaporation area then.  I don't see the trouble with little 1/7 water everywhere?  You can even build on it.  Edit:  Oh i see you want exactly 3/7 in your pool.  Well you have a few options.  if the result has a few 4/7 tiles dancing around you can use a fill-pond job to remove them precisely.  You can also make the whole floor a retractable bridge. You can also make the entire floor a drawbridge and atom-smash the water that's left over (you can also atomsmash full 7/7 water).  If you want to have some fun you can take out the bridges and put in single diagonal access blocked by a door, and have the door connect to a pressure plate that opens the door if the water is at 0-3 and closes at 4-7.  If you put the PP right next to the door, it might cut it off perfectly (maybe not).  If you're fine with 7/7 water (AND fun) you can take our conclusions from the other thread, and leave all the bridges past the diagonal bend open, the depressurized water should cause it to not flood your fortress, despite water being at the level of the hospital on the other side.   :D

PS: with the ramps as shown in your screenshots, the risk of accidental drowning is slim.  If you want to decontaminate I often make just tiny little dips in hallways and fill via bucket.
« Last Edit: May 07, 2013, 04:16:53 pm by slothen »
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While adding magma to anything will make it dwarfy, adding the word "magma" to your post does not necessarily make it funny.
Thoughts on water
MILITARY: squad, uniform, training
"DF doesn't mold players into its image - DF merely selects those who were always ready for DF." -NW_Kohaku

Gentlefish

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Re: Pfft, who needs wells?
« Reply #4 on: May 07, 2013, 04:09:30 pm »

Have your flusher crush the water instead of flushing it. That'd be the quickest and easiest way to do it I'd think.

jez9999

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Re: Pfft, who needs wells?
« Reply #5 on: May 07, 2013, 04:17:55 pm »

Have your flusher crush the water instead of flushing it. That'd be the quickest and easiest way to do it I'd think.
Great idea... I hadn't thought of that.  :)
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