co2 levels

[Father Nature]

i have a 6x7x8 room at 12 hours continuous co2 run, calculations say i should set regulator at .08 which feels like nothing coming out of tube. my room is somewhat sealed but not airtight due to heat reasons i cant change.my meter goes to 2.0 max which i can feel if i hold it to my face,but still not a really strong flow.My question is,is that normal flow,and what signs of over co2 should i look for.(i read over co2 will halt growth which is obviously no good and worse than no co2 at all)

[BaronS]

I have to go back _many years_ and really can't give you anything but comment. I remember we had a hard time getting CO2 output from the bottle down low enough to be suitable. Just saying that it doesn't surprise me you are finding it difficult to detect the anything coming out I suppose. I was feeding a 24*12 garage. Equipment has changed too, probably easier these days.