GT has something called covers that lets you use redstone in many different ways. One cover deals with liquid amount being represented by a redstone signal and there is a "machine controller" cover that lets you use redstone to control if a machine with this cover will turn on or off. On multiblocks the machine controller must be on the control-block. I'm pretty sure there is a quest in the book regarding covers and such.
amazing answer. i havent played with gregtech since well before he added in the steam starting machines, etc. ive also been conquering different parts of that book in random order since i want to set things up and the book keeps having me make things i dont need right away. dont get me wrong its a great teacher for somethings but i wish it was sorted a bit different sometimes.
I generally get my vacuos from wooden bowls, but I guess alienis is pretty easy to get if you have a good enderman farm.
its called enderLilly's from the dungeons i got 23 of them on endstone so far.
btw i cant tell you my secret to getting endstone. but i havnt killed the end dragon.