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i'm screwed

jexter71

Member
25+ days of flower and no signs of bud. 4th grow in this room. 4000cfm on 1000 watt in an 12x 12 room, sectioned off. i run really hot(summer) but it's like a hurricane in their. pure blend, cal-mag, pro-silacate and liquid karma in foxfarm soi. 65-75 degrees lights out....88 to 110 lights on. It's so hot outside. I have seen with my own eyes plants(cannabis) growin outside in 112(day) to 80 (night) and do fine, 4000cfm is an incredible amount for that 1 light. ( one 2000 cooling light and pulling through scrubber exauhsting outside , 1 2000 blowing on light and girls. I was also told several times by people repected on this site that high temps are o.k. with proper ventilation.
So why won't my girls flower? P.s timers not broke, no light leaks, very low humidity and run about 5.9 to 6.3 p.h. varies. 3rd gen. clones thats it, i think.

Please don't respond unless you know. I know it is "to hot" circumstances out of our control, but how to combat it. A/C is not an option, to much power consumption( would need re-wire) and to dry here(8-12%) humidity. re-wiring, buying an a/c and humidifier just isn't acceptable. I have about a $1100 in already, and can put out no more with out more return first.

This is for meds, not just to party( no offence intended) myself and 2 others are in need of this medicine. My gulit is getting pretty heavy, i was supposed to be "ready" the end of this month. My friend is terminal, so i have to turn it around!!Any correct advice is desperatley needed. Thank you in advance! :wave:
 
G

Guest

Hello if youve grown these strains before and this has not happend we must narrow down what the problem could be..There has to be some type of light getting in some were..How bout from a fan or power supply switch thats glowing some?..What about around your exhuast vents light seeping in there.?.To much nitrogen in your bloom solution? Heat will not delay flowering it will effect bud growth some what..If none of these are factors it may well be genetic but with 2 diffrent strains im going with room condition..
Hope you can get this worked out for your friend and yourself..
take care
greenfriend
 

resinryder

Rubbing my glands together
Veteran
What is the timed light cycle your lights are on now? Which PBP formula are you using? Fruit and flower flormula, Soil formula or some pbp veg formula added in? I know these may sound like silly questions but we need to know what your mix is, etc to help. Hope we can straighten,or identify the problem for you. Light leaks will mess up bloom, is the room sealed against light leaks?
 
G

Guest

Light contamination would have to be significant to delay flowering in an entire room, little glows and such do nothing to the photoperiod.

Nitrogen in the first few weeks of flwoer is necessary for stretch growth and shouldn't effect the onset of initial flower production.

Jexter, you're not even seeing pistil clusters at the tops of your colas?

Mazar flowers for 60 days or so, so your just a 1/3 through. Maybe patience is the answer?
 
G

Guest

outside is not the same as inside. you may have seen them work outside but have you ever seen them grow a cycle inside like that??? probably not with any kind of decent result.

if you are going to run those kind of temps you need C02, or you arent gonna get much any results, and even then that's still too hot.... if you had results they won't be optimal ones. and that aint gonna happen with the type of venting system you're trying to use there.

secondly how is that ventilation proper? 4000 cfm for 1 12x12 and 1000 watts! ????? jesus man! you are probably using almost as much power running those 2 fans as you are that 1 lamp.... how big are your vent ducts? if your ducting is only 4 inches you are only pulling the air out at ~200cfm no matter how big your fans are, 6 inches will do 400 some cfm i believe it is.... either way with fans like that you should be running 8 to 12inch ducting i'd figure.

the filter through light and outside is ok, but where is your fresh air comming from? If you're gonna run 2 fans IMO you should do 1 fan sitting on top of the carbon filter and sucking the clean air out to the outside or a neutral room. and 1 fan for the light in a seperate loop , so that it's pulling air from a neutral source (outside or adjacent room) over the lamp and right back into either the same or a different neutral source .... no filter or anything to slow down the air.

after setting up the cooling as such, I would probably add another small 180-265cfm fan pulling air into the grow from a neutral source (outside or adjacent room)


just rambling off some ideas for ya...


THC
 

jexter71

Member
thanks everyone. I do run 8" ducts. Maybe forced intake from outside like ceaser said .I have outside air air-cooling my light but only passive intakes. I am going to do some "construction" and move the fan blowing on the ligjts and girls to pull fresh air from outside. Positively no light leaks.

I know i have fan overkill, (1950cfm) ea with a small 100 osiclator, to deal with ambients. My fans pull a combined 2.7 amps. A 9,00 btu a/c can be 5-7 times that. 1 fan is on a y pulling through filter and a short run of duct pulling fresh air over light. Other is setup for wind and air- movement. So forced intake could help? what about ambients being so high. Wich will benifit more, the more fresh air, or blowing on girls. Maybe ANOTHER fan?

12x12 by the way is whole room,. actual grow space is 8lx4wx7h., sectioned off, in a 12x12 out-building. what about a roof turbine or vent on other side to help remove heat? i'm worried about screwing up "winter" since i have to heat or girls will die. I heard you can stuff insulation in those turbines for winter? That seem a cheap non electric solution, maybe?
pb pro by bottle recomendations, with pro-silicate evry other watering (in veg and first 10 days of flower) Am going to use ff Tiger for flower booster, if i ever get there. I can think of no difference from other grows. Humidity is low, heat is high, air movement violent.
thanks all

p.s. all of you buying expensive inlines should look into floor"dryers" i got $150 into 3900 cfm, i can't even imagine what elicent or fantech would charge for that much movement. Hang with bungee's and 8" ducts connect just great. Just a tip/thought. :wave:
 

jexter71

Member
Thanks everyone again. I hope patience is the answer cap. Even after 3 full grows (this is number 4) i am still learning alot. I do see some pisitl cluster development on 2 of 9 girls. I was just expecting consistency, i was taking samples at 45 day last run, nice samples. Then all the over anallizing and reading, " high temps cause re-veg" "raise light to decrease temp" and on, and on. Another 10-12 crops and i'll have it mastered....not.
 

jexter71

Member
the need for supplement co2 at high temps should not delay flower onset. only generate a larger healthier yeild. Thanks
 

jexter71

Member
THCAESAR said:
after setting up the cooling as such, I would probably add another small 180-265cfm fan pulling air into the grow from a neutral source (outside or adjacent room)





THC
This is the plan of action as of now, next buy barter/trade for a swamp cooler. Thanks
 

GMT

The Tri Guy
Veteran
soil or hydro?
dont have the same source of air blowing over your light and plants unless you guarantee that it hits the plants then the light then leeves.
You could try putting a couple of buckets of cold water in there each morning if the humidity is so low. Not to try to raise it, but to use up some of the heat energy in 1. warming up the water and 2. evapourating the water.
Other than that I'd say, either try a strain that can take higher temps, or restrict your growing diary to better times of the year. You could try increasing the size of your sectioned off area, as this will reduce the temp a bit. I'd also forget passive intakes and move to passive outlets.
I can only wish you luck now as that's it for ideas from me.
 
G

Guest

do you use any type of adapter to connect your 8inch vent ducting to your air cooled hood? if so that will screw up the air flow too.

another thing, i'd just get rid of that Y that you have and pull ALL the air through that carbon filter , over the lamp and out of the room. you could just use that 2nd fan (with a dimmer or speed control) and set that up as your intake , and run it pretty low so you keep more air moving OUT of the room than in.

C02 wont work with the kind of ventilation you will need.

inline fans are more efficiant than blowers.


THC
 

jexter71

Member
without y, i would need a reducer restricting air flow as you mentioned above, why do that? 8x8x4 i, 4" coming off hood, and 8" coming off 8" collar of scrubber. Man fans are 8" so that is perfect. Thanks for all reply's. I will work it out somehow.
 
G

Guest

if you have 4 inch flanges on your hood, the air in the whole system aint moving anymore than 180ish cfm, that's why i ask..... doesnt matter how big the fan is , or ducting or filter if the whole thing bottlenecks to 4 inches, 4inches worth of air flow is not enough to cool a 1000 watt lamp well at all.... and may be a reason why the room heats up so much...


the room you grow in shouldnt be anymore than a couple degree's warmer than the rest of the house. that's how i guage my setup.


good luck man

THC
 
G

Guest

Yeah, you are basically cutting your airflow by 75%. It takes four 4-inch holes to equal that of one 8". You are only as stronge as your smallest duct.

pie*r^2
 

jexter71

Member
i agree but the so called bottleneck would be forcing that air air through a 4" duct i pull from out side, through light( all come with 4" fittings so...) to an 8(out) by 8(can filter) by 4 (hood) y, then out an 8" duct.The air that goes over my light is all from outside and then back out without "contamination". I agree you can't push more air through a duct than it can handle. but i pull from 2 sources. size increases from in to out...where is the " bottleneck"? If i put my hand over my light"intake" its like a vacum, no loss there.
Thanks for the idea's caesar. if i pull through filter(8") into light(4") and out i would be reducing flow as you mentioned.I would also be pulling warmer air fom room instaed cooler air form outside,through my light. I am established with 8" duct for maxium flow. i can draw a horrible diagram, but there are lots of pics of the same thing(minus the huge ducting) on line. i think i am being mis understood. Thanks for the replys! :wave:
 
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