I used one like this inline with a 6" duct and filter. Fantech was the brand like my fan but these are very generic and many sizes and brands are available. Look for backdraft damper. They even have powered ones.
Only open when air is being sucked out. Works like a charm. Just a thought, but with a room your size you could probably place a couple of smaller ones to create better air circulation.
4 880s!! I Just got finished mounting the lights a much better way!! These lights are insanely bright!! Thanks on the idea of having the reservoir outside the room, I did that yesterday. I also have the air pumps outside the room!
Lookin Top notch man! Smart move adding rope to your light hangers. Them cheap ass cables are unreliable. Seen a couple peeps with broken ones. Can you still raise and lower them?
Thanks man! Yeah i wasn't liking the cheap hangers. I can totally raise and lower the lights with this system each set of lights is connected to a winch on the wall. Installing the rest of the ducting from the fan tomorrow. Also slapping in the backdraft dampers!!! More pics to come!!!
thanks for the input!! how are you liking that ph controller? work good?
Yea it works primo, only wish it had a dead band range. A little fluctuation is good for the nute uptake. Especially the Cal/Mag both do better at slightly under and over the 5.8 for hydro I keep it set at.
This new graph shows that hydroponics works better with pH of 5.2-5.5. That's where clacium and mg and everything else get taken up the most. At 5.8 there's a bottle neck and then after 5.8 a lot of micros are harder to absorb.
Where did ya find that one?
