Desman, if I'm reading the above correctly, the conversation starts to go badly south on this comment: "I specifically said top and left-right slots. Nothing is blocked. This isn't rocket science ffs. "Classic, posting a bunch of completely unhelpful comments because you are too lazy to even read the description of the problem, then playing the victim. Don't kid yourself, you were not helping at all.
It was the usual cobblestone made by Thaumcraft extruder. It was in a barrel, though.
I'll allow that I might be missing something, but if not, this is where the problems in the conversation starts: with a poorly constructed response to the person helping you. The fact that you weren't excited by his questions and/or suggestions is actually irrelevant.