Hehe I personally never tried it because I heard it smells like ass (can't tell you for sure). But to connect it to the grow room you simly run that tubing in a perimeter around but above the plants and poke tiny holes in it so the CO2 can get out. The purpose of putting it above the plants is because CO2 falls as apposed to normal gasses which rise. That way the plant can get CO2 to all of it instead of just the lower parts.

Also, I believe Zandor was the one to say that in order for the plant to USE the CO2 properly they needed to be slightly warmer (around 80F-85F). I'm not sure about the numbers though.

Also, during the CO2 injection period or time that the plant should be using it, the lights need to be on but without the fans running. Circulation would basically carry away the CO2 you worked hard on injecting into the grow room and I believe the plants need light to be able to go through photosynthesis and use that CO2.

It's kinda cool having a thread with my name in it

Goodluck <3