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[nakorkren]

As the topic indicates, I have a question about murky pools. There is no water on the map other than a few murky pools, unless I build a giant pump stack down to the caverns. Which I may do later, but right now it's beyond my abilities.

I know that murky pools will fill back up from rainwater, but will not overflow. My question is this: if I build a wall around a murky pool, will it fill up to the level of the wall and then stop, or does it only fill back up to the original level?

I'm going to try it, obviously, since it's low cost to find out, but I was wondering if someone had already figured it out.

[slothen]

never tried this, but I'm quite confident it will not work.

[Garath]

no, otherwise they'd fill up regardless of the walls and overflow. I don't think there is a script that makes a murky pool check if the edges of the pool could be higher than 1 z-level

[vanatteveldt]

You probably need to pump out the water as soon as a decent quantitiy is in there and accumulate the water in a cistern. that way, the (now drained) murky pool can continue to fill up.

[fricy]

You could try to make the pool bigger or deeper.

[Garath]

definately not deeper. The 'murky pool' tiles are fairly unique

[Sutremaine]

Deepening a murky pool will only make a pit in the ground, which functions the same as any other you dig out yourself. Murky pools refill because each of the Murky Pool tiles generates 1/7 water whenever rain hits them, and if you destroy these tiles then you destroy the pool.

[Nobu]

It won't work, the murky pool tiles just fill their own square, like the others said.  So what you want to do instead of maximize draining them, to make sure they're never at 7/7 when it's raining, because that would result in you missing out on potential water.  You'd ideally build the drain to the side of the pool so you're not breaking the murky pool tiles you are counting on.

[Sutremaine]

Drain it into a sump for an always-on pump. Once the water passes through the pump, it stops being stagnant, and having the pump right next to the pool freshens the water ASAP. Stagnant water is no longer the magical mega-pollutant it was for a few versions, but it's a bad idea to leave stagnant water anywhere a dwarf can dip a bucket in it.

[Ionizer]

I've expanded a murky pool, and the new tiles filled with water (though obviously much slower than normal and I lost some rainwater to evaporation).  Obviously, only the murky pool tiles actually filled, then the water washed into the new tiles.  The most successful "Refill" was an early winter rainstorm (this particular biome freezes only during mid winter) that left most tiles of my pool with a small puddle of water, that froze into full 7/7 ice blocks before it evaporated.

[weenog]

I made an awesome lake once by connecting multiple murky pools together, but it took a long time of carefully controlled channeling to get that sucker to fill and not just evaporate away.

[Zanzetkuken The Great]

I made an awesome lake once by connecting multiple murky pools together, but it took a long time of carefully controlled channeling to get that sucker to fill and not just evaporate away.

I created a system of canals through this method, but I made sure the pools wouldn't drain to evaporation (lowest it got was either 2/7 or 3/7) and waited for the system to fill before digging further.