CO2 Help

Hydrokronics

Hydrokronics

Well-Known Member
I am about to get a co2 tank and would love someone with some knowledge to help me out. I cant deside whether to get a 10lb tank or a 20lb tank. I would rather keep it small so tht when i need to fill it wont be as big to taking and out. Also my space is about 4X4. would a 10lb tank be enough for this size of a room? also i have ventilation for heat, should i turn this off when i use the tank. one last thing is where can i find the best cheap regulator and emitting setup? Thank you very much for your time and help
 
Hydrokronics

Hydrokronics

Well-Known Member
Thank you very much for all your help man! i appriciate it. How long do you think a 10Lb would last if i used it a minimal amont for this space? thanks again for all you help and input! +rep
 
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gforce420

Well-Known Member
You should not need to turn off your cooling fan if you have a closed loop. Run intake ducting from outside your room to your reflector, across the bulb then ducting taking that air from the other end of reflector to the outside of the room. Have it all sealed. This is of course assuming you have a reflector w/a tempered glass lens on bottom & flanges for hooking up the cooling ductwork. That was it's a closed system, you put it on the same timer as your light. Always on/always cooling when light is on. & if your CO2 is running in the room it should not be drawing any air out of the room.
 
hippiepudz024

hippiepudz024

Well-Known Member
hey i actually have a growspace of 4x4 and i have been using a ten pound tank for a while now. When you buy the co2 tank you will have to buy a co2 emitter system, and with a 4x4 room it will take about fifteen minutes at 0.1 psig to reach 1500 ppm in the air, so what i do is three times a day i will turn the fans off for thirty minutes and as soon as i do that i turn the co2 on for fifteen minutes on then it shuts off for fifteen minutes so the buds can saturate in the co2, Then after that i turn the fans on for fifteen minutes to vent out the air, Next i just repeat the cycle of co2 that i just stated with fifteen minutes on and fifteen off. By doing this method your co2 tank will last between five and six weeks if your using a ten pound tank
 
Hydrokronics

Hydrokronics

Well-Known Member
Sweet. Thank you so much bro. that is the exact type of information that i need. I just got the tank and now need to pick a good regulator system. Do u know of any that are of good price?

The only reason the closed system technique is because i have a Y connection which i have a charcoal filter on one end and the hood connected on the other. Due to the many bends in the ducting for the hood the charcoal gets a good amount of pressure, pulling air out. One thing that i am concerned with though is that when i turn off the exhaust fan the room will most likly heat up pretty quickly! i am assuming that with the injection of the co2 it will not be as detrimental to them. but again i do no know. Will the temp increase hurt them or will the added co2 protect them? Thanks again to everyone for there help this is a perfect beginers course on co2
 
BigBudBalls

BigBudBalls

Well-Known Member
Hydrokronics said:
Sweet. Thank you so much bro. that is the exact type of information that i need. I just got the tank and now need to pick a good regulator system. Do u know of any that are of good price?

The only reason the closed system technique is because i have a Y connection which i have a charcoal filter on one end and the hood connected on the other. Due to the many bends in the ducting for the hood the charcoal gets a good amount of pressure, pulling air out. One thing that i am concerned with though is that when i turn off the exhaust fan the room will most likly heat up pretty quickly! i am assuming that with the injection of the co2 it will not be as detrimental to them. but again i do no know. Will the temp increase hurt them or will the added co2 protect them? Thanks again to everyone for there help this is a perfect beginers course on co2
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Adding CO2 to a high temp is a good thing. Its a band aide fix though. (yes I know your temps are good with fans on, but will rise with fans off. THAT you need to fix) Warmer temp open up the stomatas on the leaves so they breath better (use the CO2 more efficiently) BUT, if the temps get too high (over 90F?), the THC starts to degrade.

So higher temp, add CO2 (but within reason)
Keeping the temp in the ideal range and still have CO2 is probably a better course.

Cool your light separate from the room ventilation.

And get a 20lb'er if buying the tank (I hate renting tanks)
 
Hydrokronics

Hydrokronics

Well-Known Member
so your saying i should order a second one with the regulator. and does the hydrofarm regulator kit come with everything tha i will need (other the tank obviously) also would you suggest any better regulator? thanks for all your help +rep
 
BigBudBalls

BigBudBalls

Well-Known Member
Hydrokronics said:
so your saying i should order a second one with the regulator. and does the hydrofarm regulator kit come with everything tha i will need (other the tank obviously) also would you suggest any better regulator? thanks for all your help +rep
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Someone should give you the washer. If not, just drop by a brewery supply or welding supply house and grab one. Probably give it to you for free at the welding place (too much a hassle to make a bill for 50 cents)


(someone the other day was saying that the hydrofarm unit could't be used with a controller. I thought that was bunk. Just take off the flow meter, adjust pressure to about 20psi/1.2bar and hook up)
 
Hydrokronics

Hydrokronics

Well-Known Member
OK, so im good on the wasers, but now i need to know how big the holes on the distribution tubbing should be and how far should they be apart so that there will be even distribution? i got a hydrofarm regulator kit and the tubing didnt have pre dilled holes or tell you anything about the holes on the instructions. Im sure they are suposed to be pretty small holes and there needs to be a few of them but i dont want this to be the reason that i dont utilize every bit of co2
 
Hydrokronics

Hydrokronics

Well-Known Member
how big should the holes be? 3/16 or smaller? cause right now i just have a straight 1/4inch tube ending right at a fan which is blown up to get it in the room. i kinda figured it would be the same as long as it is in the room
 
Hydrokronics

Hydrokronics

Well-Known Member
Im sure they are alot of others that will say it makes more sense and works better to spred it out of the top of the plants but who really knows? And there inst a stardard fo what size holes to make in the distribution. so how do you figure out if there is even enough pressure for the co2 to reach all of the holes? you would have to put the entire tube under water and drill holes one at a time of something to make sure you dont put to many. I could be wrong but i figured as long as the ppm of the room is around what you want then it doesnt matter how it was put there
 
hippiepudz024

hippiepudz024

Well-Known Member
yeah you definetly got the right idea man, as long as you get the room the right ppm in the air that you want it doesn't really matter how it gets there, because i have had my co2 running just like you have yours now and i did'nt notice any difference in any kind or growth or yield, than having the holes in the tube to disperse the co2
 
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childofjuly

Active Member
good day everyone! first post here! Don't want to hi-jack this thread, but instead of starting a new one i think my question will fit with in this. anyways, my question is how long and how many PSI out of a 1/8" ID tube will it take to fill my space to the magic number of 1500PPM? (my space is 4' x 3 1/2' x 7' 98cubic feet) thanks everyone!!!
 
hippiepudz024

hippiepudz024

Well-Known Member
well my growspace is 4 ft long 3 ft wide 7 tall, and i keep my gauge on 30 psi and then on other little regulator( mine actually is like a little ball that will float up higher and higher in like a 8 inch tube and on the tune it has markings from 0.2 all the way to 2.0 psig) I keep it at 0.1 psig ( which is about the lowest my gauge can go) for fifteen minutes and then the room is about 1500 ppm co2
 
BigBudBalls

BigBudBalls

Well-Known Member
childofjuly said:
good day everyone! first post here! Don't want to hi-jack this thread, but instead of starting a new one i think my question will fit with in this. anyways, my question is how long and how many PSI out of a 1/8" ID tube will it take to fill my space to the magic number of 1500PPM? (my space is 4' x 3 1/2' x 7' 98cubic feet) thanks everyone!!!
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To achieve 1500ppm or to maintain the 1500ppm?

Maintaining has a lot of variables, starting with #s of plants and plant size/leaf surface area. More leaf surface area will convert the CO2 to O2 faster.

Closed loop is the way to go. not cheap, but its right.
 
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childofjuly

Active Member
BigBudBalls said:
To achieve 1500ppm or to maintain the 1500ppm?

Maintaining has a lot of variables, starting with #s of plants and plant size/leaf surface area. More leaf surface area will convert the CO2 to O2 faster.

Closed loop is the way to go. not cheap, but its right.
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to achieve! thank u good sir!
 
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