yeah I should have said in my original post that I have a MaltMill and feel like I am getting good crush based on everything Ive read (hulls intact but everything inside grain pulverized). now I'm wondering if I need to check the spacing on my rollers, or just send it through 2x?
I would close your gap a bit. I know that everywhere you read says exactly what you said. Crush the grain up beyond intact hulls. Whether it's right or wrong, my grains are all but pulverized. I also have a pipe manifold and actually find that the grain bed settles and filters much quickly than the hulls intact crushed grain.... And have never had to deal with a stuck sparge.
I also batch sparge and is much faster with just about the same result. I used to also sparge around 170 degrees and per some advice on here, I've upped it to 185. The increased sparge temp has also increased my efficiency.
One more thing.... What color is your cooler? I would guess red...