Hey how is every doing? Ok I'm in the middle of redesigning my flowering room. It's a 3.4x2m 500 cubic feet my room is totally sealed no co2 atm it will come later. I'm running a 300mm grow room evap cooler passive intake with a back draft damper. Running a 250mm carbon filter and fan with backdraft damper as my exhaust. I will be growing 4 plants in here in 20l pots in clay balls top fed. Now my lights which is the main point of post I will be running 6x600w hps in 8" air cooled hoods. The ducting setup for the hoods will be 250mm duct to wall into a 250mmx200mmx200mm y piece into 200mm duct into my hoods into another y piece 300mmx200mmx200mm into a 300mm 800cfm inline fan into 300mm duct and finally yd back into my exhaust duct out the room just wondering if any one saw any problems with anything I've got?
