Hello to Overgrow crowd 
I have been on forums on/off for over 13 years and have learnt a lot of decent people and knowledge along the way, my preferred growing method is Mapito flood & drain but i have grown with success in coco dtw but nothing beats the ease of flood and drain every 3 days 
I have been out of growing for a few years and i am jumping back in trying things i have never used before so hoping for some advice.
My room is 3.45m x 5.5m but growing space is 3.45 x 3.45m i have 9 x 1000w dimlux lights with maxi controller and the co2 controller connected to bottle of co2. I also have a opticlimate pro 3 10,000.
Growing in a sealed room is very new to me not taking in any fresh air or exhausting stale air worries me a little as this is how ive grown for years but ive maxed out at just over a gram per watt and im curious if running co2 and a fully controlled room can take me above this. More just curiosity as a grower and now i have a chance to test it so i would like to share.
I will upload pics of the build process in the coming days.
I look forward to sharing with you all and chatting to hopefully some old faces
OptiGrower