I have the same hoods with 1000w bulbs. I heep mine 6' apart. A 1000w light has a footprint of 5x5 when 18" from your plant canopy. That means 2'6" in all directions from the bulb. You can add a little more when you have 2 lights side by side because the extra foot in the middle is receiving tlight from 2 bulbs which add up to sufficient footcandles.
What kind of fan is it. I would say 90% of all inline fans don't pull their rated CFM's. Some don't even pull half. What brand is yours? If it's a straight shot with just a curve upwrd to the ceiling you should be fine. Get your filter as close to your hood as possible to reduce the ducting run. Take out as many curves as you can in the ducting.
Ok so then it would be best to jus fill em up tray by tray every two weeks jus transplanting 16 of them from one gals in the veg tent into the trays in the 4x8 tents n jus leaving em in five gals for eight weeks. So next question if im doing four trays at seperate times I need to have different ratios of nutes for all the different stages. do u kno how to set up auto watering like a sprinkler or somethimg
here is a ghetto ass drawing i could draft real quick
I'm lost. Why are you putting plants in 5 gallon pots? You said you were growing short plants; maybe SOG. You don't need pots that big to grow short plants. I would veg them for 2 weeks in 1 gallon pots and then transplant them 1 to 3 gallon pots 1 week before you swithc them to flower. That way; depending on the strain you will get 30-36" plants. You can't grow much taller then that. All those bigger tents are at most 7' tall. With a light hanging in there and the distance you need to keep the plants from the light you only have 5' really. Then you have to have tables and reservoirs. You will never need a 5 gallon pot.
Get your filter as close as you can to your light. Reduce the ducting distance as much as you can. If it is the green fan you bought off Hydrofarm.com then that is actually an Active Air fan. No offense but those fans are dogshit. I would still make the changes because it is going to help. If you still have problems with the heat afterward then look into a fan that actually does what it is rated for. I would recommend the CAN High Output 8" Inline Fan. Those are what I use and they actually do achieve their rated CFM. I've also heard good things about the Vortex Fans.
That's crazy, you sure it isn't just routed to different port? You would think they would let the water continue to run and just shut off the fans. Water pumps are really designed for continuous use anyway. Or at least just have the water routed through an auxiliary port. That's really weird Hell. I'll think about it but I bet the guys at H&M will have a logical answer for you if you call them tomorrow.
That's kinda bogus on their part. I mean they must know you are going to be hooking up a water pump. Any way to trip the relay on the baffle or lock it open? Maybe you could just wire a simple bridge and trick it to think it's always on?
So taking this into account getting cold air into the room shouldnt be an issue should it and the need of an aircon unit shouldnt be needed? I will be looking at running the lights at night aswell and i would like to mention the temp at night here can get quite low to single figures, even on a hot day 20 celcius the temp can drop below 10 celcius in the night. Also from alot of grow diaries on a UK forum they use parabolic or open hoods would you still stay stick to the vented hoods as outside temperature rarely gets upto mid teens for any length of time. Im not contradicting you just making you aware of the temperatures so i can get the best setup ..
