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Author Topic: How do I filter my cistern?  (Read 892 times)

Moleculor

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How do I filter my cistern?
« on: February 23, 2012, 06:29:00 pm »

So back in v34.01 I made a cistern in a fort. In the (1 square wide) tunnel that connected the river to the cistern, I placed a Grate, Fortification, Grate, right next to each other.

Or was it Fortification, Grate, Fortification? I forget. Anyway...

I remember reading that this would prevent things from getting into my cistern, keeping it animal/monster free. That's exactly what I wanted. Then I pulled the lever to fill the cistern and...

...watched as a swarm of fish spawned inside of it.

Now I'm building another one in 34.02, and I'd like to build a filter for it.

So... how do I keep my cistern and underground water supplies free of animals/creatures/vermin/monsters/whatever?
« Last Edit: February 23, 2012, 06:31:48 pm by Moleculor »
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Gizogin

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Re: How do I filter my cistern?
« Reply #1 on: February 23, 2012, 06:33:16 pm »

You may be out of luck, I'm afraid.  If those fish did indeed spawn inside your closed cistern, then that means they're probably "vermin"-style fish.  Much like regular vermin, they'll spawn pretty much anywhere, no matter what you do. 
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AWdeV

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Re: How do I filter my cistern?
« Reply #2 on: February 23, 2012, 06:33:55 pm »

Grates and fortifications and such should keep out the animals, but vermin(fish) will IIRC spawn there. What you could do as a definite no-animals-allowed is to pump it to a different basin.

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Re: How do I filter my cistern?
« Reply #3 on: February 23, 2012, 06:35:26 pm »

You could always build your own cistern and pump water through it ^-^