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[Raphite1]

Let's say my map has a common 1-level deep murky pool, like this (side view; X=ground tiles, ~=water):

XXXXX~~~~~XXXXX
XXXXXXXXXXXXXXXX
XXXXXXXXXXXXXXXX

I know that this stagnant water will spread its stagnant-ness to other bodies of water that it touches, and that a tile that has held stagnant water in the past will cause all future water on that tile to become stagnant.

Let's say I wait for the murky pool to evaporate, and then completely remove the adjacent ground tiles (both below the pool and around the sides) to make a 2-level deep pit, like this:

XXXX           XXXX
XXXX           XXXX
XXXXXXXXXXXXXX

If I pump water into this pit, will it become stagnant even though the "murky pool" tiles have been removed?

(Note: I also realize that there's a bug causing murky pools to transmit stagnant-ness to other water bodies if they're only separated by a single wall, so perhaps imagine that my "pit" is big enough to have removed two layers of tiles adjacent to the original pool.)

[Sphalerite]

Removing the tiles doesn't remove the stagnant flag.  The open space left behind will still remember that it once held stagnant water.

[martinuzz]

in my current map, my river seems to have stabilized. 2/3ds of it are stagnant, and the first 1/3d, starting from where the river enters the map, stays non-stagnant, even though it is touching stagnant tiles. The rest of the river became stagnant after tapping from it.

Will my wells built over stagnant water work?

[smeeprocket]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

[Sphalerite]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

Actually, water drawn from wells over salt water is perfectly usable.  It will show as 'water laced with salt' if you examine the bucket, but dwarves will still happily drink it or use it to clean wounds.

[Iodinium]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

'water laced with salt' but dwarves will happily use it to clean wounds.

Ouch.

[TheLinguist]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

Actually, water drawn from wells over salt water is perfectly usable.  It will show as 'water laced with salt' if you examine the bucket, but dwarves will still happily drink it or use it to clean wounds.

Well, I guess after you start raising kittens for food, melting the fat off of soldiers with magma, and using your own children as dwarven shields, a little salt in the wound isn't such a bad thing. Helps to build pain tolerance, I'm sure.

[RabblerouserGT]

So water drawn from a well (over stagant water) is safe for drinking and cleaning wounds? Or will it lead to nasty infections?

[slothen]

as i understand it:

dwarves don't like muddy water.  Wells 1 z level deep will always give muddy water.  2-z level deep wells will not have this problem.  Not sure if not drawn from a well.
dwarves don't like stagnant water.  Stagnant water is water that touches a stagnant tile.  Stagnant tiles are flagged by having stagnant water on them.  The result being all parts of a body of water are stagnant once.  Dwarves ignore stagnancy is ignored when water is drawn from a well.  The game seems to remember, so it seems likely washing injured with stagnant water increases chance of infection.
Ditto all the above for salt water, except dwarves will drink stagnant water but not salt water, unless drawn by a well.

[Naryar]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

'water laced with salt' but dwarves will happily use it to clean wounds.

Ouch.

Pretty sure it would be a good disinfectant...

[RabblerouserGT]

So I was probably better off with my saltwater fortress. lol

[robertheinrich]

Dig out a cistern and fill it with a screw pump. Pumping water destagnates it and also removes the salt.

[RabblerouserGT]

Dig out a cistern and fill it with a screw pump. Pumping water destagnates it and also removes the salt.

Not really sure how cisterns work. Would rather see a video of someone successfully setting one up.

I mean, I !!FUN!! and all that, but not "permaflooding-your-fortress" kind of fun. More the stabby things and severed heads type of fun.

[Pokon]

Wells fix the stagnant water problem. At least for water drawn from it. No so much for salt water though.

'water laced with salt' but dwarves will happily use it to clean wounds.

Ouch.

Pretty sure it would be a good disinfectant...

"Hey, Urist, where did yah get the soap?"

"Oh, this thing? I scraped it out of the water bucket. It hurts a little when it rubs your skin, but it's better than feeling nothing."