LOC and Xcrispi thanks for the advice from both of you I really do appreciatte it. You two possibly just saved me some time and money. I never actually took into account that Co2 is harmful to people, completely forgot that one. Im starting to think this might be something I want to try when I have more space and have a few more grows under my belt. I thought it was going to be a little easier than explained. My area for the grow is completely sealed and but it's not in a separate room, I actually have my grow in my room (can't take risks in having friends over and have them find it in a closet) so the whole Co2 being harmful does worry me a little. When I thought of using Co2 I thought I would be able to go to Home Depot and get a small slow release valve and use a tube with holes to slow the release. Guess its a little more complicated than one would think. Thanks again both of you for great advice

WWZeus