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[Ihtomyt]

I've embarked in a wetlands, which is also in the mountains, and all surface water freezes in the winter. I am thinking to build a cistern, and have already taken advantage of winter by building a bridge, now closed, directly next to the frozen water source with preparations to drain into the cistern. My concerns are that I've read in the wikis and things that water taken from a wetland biome will become stagnant. Also, it is very cold here in the winter. Before I ask the question, I also plan to smooth the surfaces of the cistern before filling it, to avoid mud.

With the background out of the way, my questions are

1) If the water is from a wetlands biome, but is taken from a running river or brook, as is the case with my fortress, will that water become stagnant, or is it only water taken from pools that will become stagnant?

2) Will the water freeze next winter if it is moved several z levels underground?

3) Will the water potentially be muddy coming from the brook?

4) Pumps and wells are intimidating to newbs! (I know that's not technically a question!)

[scourge728]

I can tell you that 2 depends mostly on whether that underground is classified as an indoor or outdoor space, which afaik basically boils down to have you ever removed the ground above it

[Ihtomyt]

Aha, thank you, I read and read the water stuff repeatedly, and didn't grasp that, but now I understand. Ok, so it should not freeze.

Also, I THINK I figured out the mud one... there should be no mud from flowing water, and I'm going to waterfall the water with gravity from the flowing brook too... the brook does seem to be 1 level deep, but it is flowing. I am not sure how to check if the base of the brook is muddy though... I can't seem to see or click on the floor, but the wiki says something about the floor being muddy. In any case, I don't think there will be mud.

I am still not sure about it being stagnant though. Will I need to periodically pump the water in the cistern around to avoid stagnation because the brook is in the wetlands? I am just not sure.

[scourge728]

I'm pretty sure as long as you don't put the water in one of the pools itself, it shouldn't become stagnant

[Fleeting Frames]

1) Clean water cleans stagnant water. A screw pump and u-bend can also clean things. You can read wiki and/or make save beforehand first, but flooding your fortress is, eheh, something of an almost inevitable rite of passage even if you learn everything perfectly.

3) You need to loo'k' at the tile on the z-level of water - it'll say something like "a pile of mud" on the right when muddy.

However, not all places can get muddy - rivers won't (and brooks also have a walkable floor on top), and importantly, neither will open spaces - mud settles on the bottom. When your water from the brook flows across non-brook floor, that will be muddied though.

[Ihtomyt]

Hehehe, fair enough. Trial by fire... well, water (fire later with magma 0.0)... I guess I'll find out by doing, but yep, pretty intimidating working with water. Thanks for clarifying about how to identify "a pile of mud". I don't see any right now, so we'll see what happens after the water floods a deep cistern!

[PatrikLundell]

Everything except the exceptions get muddy by water, even if the water is clean. However, mud stays at the bottom of bodies of water, so by keeping it at least 2 Z levels deep keeps the mud away from the dorfs (it doesn't really matter to the drowned ones at the bottom...). Mud sticks to level surfaces, not vertical ones.

[Ihtomyt]

Oh! Well, that's good to know, because I was planning on making it max z-levels deep because I can't get any new water in winter and early spring when it's frozen. They'll drink from the top when hurt