Hey DGC hows it going? I finally got my commercial grow license here in sunny Oklahoma! I’ll be posting about my adventure along the way. I been a grower for 20 years now but never really used CO2 much. I have a flower room of 16x34x9 that I want to supplement but don’t know how often to dump the room. My guess would be exhaust the room every 4 hours for 5 minutes. Anyone with any good links or info, it would be greatly appreciated. āœŒšŸ»