So... I'm pretty much slow creating my military and decided to embark into an island to avoid sieges. That way, I would only be attacked by HFS and caverns.
The island however has an aquifer, and I don't know how to deal with them. I've tried lots of techniques with no success, so now I'm trying again the Double-Slit method
http://dwarffortresswiki.org/index.php/DF2014:Double-slit_method. Here you can see the situation right now:
As you can see the first level (Level 1) is the surface and the two following levels (Level 2 and 3) are dry aquifer-less ground. The aquifer starts at Level 4. So, just as the guide says, I drained the aquifer in that level and prepared to repeat the process in Level 5.
Just as before, I pumped water from left to right (as seen in Lvl 4) so my miners could access Lvl 5 and build Up/Down stairs in Lvl 6. Then, I stopped pumping water to repeat the process in the right side.
(Originally, when I had done this exact process above (beginning from Lvl 3), the water that accumulated in Lvl 4 had drained to Lvl 5 giving me the chance to have Lvl 4 walled up.)
However, when I built Up/Down stairs in level 6, and turned off the Screw Pump the water in Lvl 5 continued to be at a 7/7 Level.
Now, I don't how to continue the aquifer piercing, I don't know what I did wrong or if the soil isn't appropiate for this method or what.
So, does anybody know what could I be doing wrong with this? I'm just really lost, and I don't know how to pass through this aquifer.
I don't know if this helps, but my version is 0.40.19 with a world I created in 0.40.14, I think.
Thanks in advance, for any kind help that you can offer me.