Random832 wrote:So anyway, like I was saying earlier, can someone help me go over the logistics of safely digging tunnels to carry water?
My methods of digging magma/water tunnels:
Water: Determine width. 1-tile wide will usually do the trick, and in my experience, actually works better than wider tunnels. Also, doors are better than floodgates. They shut and open MUCH faster, plus when a dwarf goes to place it, if it makes him stand on the wrong side, he isn't locked over there, he can just walk through the door. However, doors can only be placed next to a wall, so you can only use them for a 2-tile wide tunnel at most. I think there is a way around that, but it never made any sense to me. So, now that you've determined how wide your tunnel needs to be, designate it, except for the final square, and check to be sure you're not putting it where you're planning to put rooms in the future or something (this has happened to me many times). Let the dwarves dig it out - remember to leave the final square untouched - and then place any doors/floodgates/switches/pressure plates that you need (the wiki has an excellent guide to pressure plates). Now that your safeguards are in place, go dig out the final tile to let the water pour in. Miners will easily outrun the water, especially if they're higher level miners.
Magma: More or less the same idea, but there's a trick to it. Instead of digging out the final square, disable Stone Detailing on any dwarves you care about, enable it on an useless peasant or that fifth Cheese Maker your immigration wave brought you, and go smooth that final tile, and then Carve Fortification on it. Liquids (like magma and water) can flow through fortifications at normal speeds. Why do we do this? Because there are fire imps, and sometimes lava men and magma men in there. Enemies cannot go through fortifications, and the magma flowing through it won't melt it. This way you don't have fire imps running around your forges suddenly. The reason you used an useless worker is because there is roughly a 50/50 chance (in my experience) that he will stand there wondering what the glowing red stuff is and light on fire, burn, and die right there in the tunnel.
I hope that helps, but I just woke up, so this might be total gibberish.
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