bertosmurf
Well-Known Member
Ph meter came in over the weekend.
Dusting off and updating my old grow cabinet
- Thread starter bertosmurf
- Start date
bertosmurf
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I tested the cabinet with both chambers on for a few days, and discovered that the temps were getting in the low 80's. So i added 3 more fans. They push 44 cfm each. Time for more tests.
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bertosmurf
Well-Known Member
Temps are still getting in the 80s. I believe the growstar light is producing to much heat.
Budda189
Active Member
Maybe double up on exhaust(bigger filter)?? Or if you have lights on during the day switch to lights on at night to take advantage of cooler night temps. I'm no pro and maybe wait for some more professional answers lol but that would be my next steps. Just recently it got into the mid 70's outide where I live and my room (where box is) went up to high 80s! Needless to say my box got extremely hot. I threw an ice pack in front of intake vent inside box and it cooled it right down!
bertosmurf
Well-Known Member
My temps are getting to a out 85. But i found out the house ac was set at 77. So i turned it down to 74 and the box temps dropped acouple of degrees. But turning on the lights at night semms like a more logical answer.
bertosmurf
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Put some seeds in a napkin on friday. Planted them on sunday and they sprout today.
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bertosmurf
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Update on the babies. I ended up putting them in the flower chamber, while still on a 19hr daylight cycle. I also added nutes yesterday. Here they are after 24 hours of the changes.
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Budda189
Active Member
Nice! Glad to see everything working out!
Renfro
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Nice to see things coming along well @bertosmurf
bertosmurf
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Todays pic of the babies.
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bertosmurf
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Thanks y'all Here are the babies after 1 week from sprouting
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HazednConfused
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I, personally would take out the bottom fans in both tiers of your box and run passively. Your fans are kind of working against your negative pressure that you want to create. Fans tend to like to pull air on their own, without other fans forcing air into them. Ive had issues with temps in the past, and the culprit was the intake fan I was running. Just a thought.
bertosmurf
Well-Known Member
Thanks for the thought. But the plants seem to be doing fine Imo. The highest temp recorded is 84 in the flower chamber with the fans the way they are.
HazednConfused
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That's cool. Just thought you were going for 70's.
bertosmurf
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I was. But i honestly think the light puts off to much heat for the space.
Budda189
Active Member
If im not mistaken 84f Is on the high end of exceptable Temps. Almost every guide I've read and journals I've watched say the ideal Tamps are between 72-77. Again that's ideal. Also(again correct me if I'm wrong) once plants start to flower high temps like that aren't good. If 84 was just a spike here and there I think it's OK but consistently you'll Def run into problems later on . So I've heard lol
KrazyG
Well-Known Member
@bertosmurf this is good advice and will sort your temps out.
bertosmurf
Well-Known Member
Ill give it a try. So you're talkung about taking out the intake fans and keep the exhaust. Correct ?
KrazyG
Well-Known Member
Correct, only use extraction and have a bottom vent to bring air in passively.
You could fix the pc fans on top of each other to increase airflow