Recirculating co2

R

regulate23

Member
I have a general question regarding co2 n realise the conditions are not ideal but i want to maximise the room I have so anyone with experience with co2 that can be bothered replying would be much appreciated.

I’m wondering how problematic it would be to run two flower tents 5 x 5 n one veg tent 4 x 4 (with a seperate mother tent n cloning station that’s not connected) that has one co2 controller in one tent and the three tents are connected by carbon filters - intake fans as trying to imitate some what of a sealed room....given I get the fan sizes /speeds correct. I realise the ppm would need to average out and need to be different in the veg tent n the two flower tents esp as they will always be at varying stages but my thoughts are even if I dc the veg tent if required or not n have an average ppm of 900 it’s shit loads better than the ambient 300 odd. A dehumidifier would be used in much the same way.
All automated drip systems with two different reservoirs have a split system etc.

Thanks
 
Highlife42

Highlife42

Well-Known Member
Installing co2 in grow tents? Are these tents located around liveable areas? Why not use Co2 bags? wood chips? etc..
 
Dr. Who

Dr. Who

Well-Known Member
regulate23 said:
I have a general question regarding co2 n realise the conditions are not ideal but i want to maximise the room I have so anyone with experience with co2 that can be bothered replying would be much appreciated.

I’m wondering how problematic it would be to run two flower tents 5 x 5 n one veg tent 4 x 4 (with a seperate mother tent n cloning station that’s not connected) that has one co2 controller in one tent and the three tents are connected by carbon filters - intake fans as trying to imitate some what of a sealed room....given I get the fan sizes /speeds correct. I realise the ppm would need to average out and need to be different in the veg tent n the two flower tents esp as they will always be at varying stages but my thoughts are even if I dc the veg tent if required or not n have an average ppm of 900 it’s shit loads better than the ambient 300 odd. A dehumidifier would be used in much the same way.
All automated drip systems with two different reservoirs have a split system etc.

Thanks
Click to expand...
First off. It's not considered effective to use any gassing in Veg!
Secondly: You need to control the environment of the bloom area being gassed to run high temps and RH - Temps in the 80's and an RH of 70+.
Not to mention you MUST be putting out enough PPF (light energy in useable photon's) to hit each Gas ppm need for the light used.

To really make gassing effective for the cost? Deliver over 1200 PPF to use over 1000 ppm of gas.
NOT very many can actually utilize the 1500 ppm that many places say. It's just to costly to deliver that kind of PPF, to make 1500 ppm actually work effectively (actual gas used by the plant in an effective manor).

You could spend $ and utilize 1300 PPM effectively.... You need to deliver around 1500 PPF to do it......Mmm HLG 600Rspec V2's deliver over 1550 in PPF and their Diablo's comfortably over 1700 PPF.

The effective use of gas is tied to the amount of PPF and rises on an exponential type scale.

Questions?
 
getogrow

getogrow

Well-Known Member
Dr. Who said:
To really make gassing effective for the cost? Deliver over 1200 PPF to use over 1000 ppm of gas.

The effective use of gas is tied to the amount of PPF and rises on an exponential type scale.

Questions?
Click to expand...
So would gassing even be beneficial to a room only pushing 900-1000 ppf over a fairly large canopy ?

Or are you just saying i would use a much lower ppm of co2 so its not being wasted ? Thanks sir
 
Dr. Who

Dr. Who

Well-Known Member
getogrow said:
So would gassing even be beneficial to a room only pushing 900-1000 ppf over a fairly large canopy ?

Or are you just saying i would use a much lower ppm of co2 so its not being wasted ? Thanks sir
Click to expand...
Sure, 900 - 1000 ppm's make a difference.... Works well.
What I'm saying is to deliver the proper amount of light in photon's for the amount of gas being used.
Don't bother cranking it up to 1500 and thinking it's doing better then 1000 if the light energy isn't there..
 
2klude

2klude

Well-Known Member
Dr. Who said:
First off. It's not considered effective to use any gassing in Veg!
Questions?
Click to expand...
I was always under the impression that running co2 in veg was very effective. I've never done it myself but planning to in this new setup. I've done searches on the topic and many comments suggesting that its beneficial but not to many go into detail why it is.

I really respect you opinion on all things growing... any insight on why you feel its not considered effective to burn co2 in veg would be much appreciated. Thank you.
 
getogrow

getogrow

Well-Known Member
2klude said:
I was always under the impression that running co2 in veg was very effective. I've never done it myself but planning to in this new setup. I've done searches on the topic and many comments suggesting that its beneficial but not to many go into detail why it is.

I really respect you opinion on all things growing... any insight on why you feel its not considered effective to burn co2 in veg would be much appreciated. Thank you.
Click to expand...
Of course you can speed things up with co2 but its just not needed in veg. Your veg should be growing fast without the expensive co2. If its not then that needs to be addressed well before adding gas. Its almost a complete waste of money to do that. Not near enough positives to outweigh the negatives.
 
getogrow

getogrow

Well-Known Member
Dr. Who said:
Sure, 900 - 1000 ppm's make a difference.... Works well.
What I'm saying is to deliver the proper amount of light in photon's for the amount of gas being used.
Don't bother cranking it up to 1500 and thinking it's doing better then 1000 if the light energy isn't there..
Click to expand...
Im under the impression that anything over 1000ppms of gas is wasting all together.

Can the girls even use the extra co2 when light levels are <800 ppfd ? (plenty of fresh air intake )
 
Dr. Who

Dr. Who

Well-Known Member
getogrow said:
Im under the impression that anything over 1000ppms of gas is wasting all together.

Can the girls even use the extra co2 when light levels are <800 ppfd ? (plenty of fresh air intake )
Click to expand...
To many damn ways to measure light...

At 48,240 lux of light. You have enough for 1300 ppm, barely.
A 1 K HID doesn't reach that... A DE HID will.
LED will _ the right one's!

To actually be able to use 1500 ppm?
80,400 lux!
 
Dr. Who

Dr. Who

Well-Known Member
2klude said:
I was always under the impression that running co2 in veg was very effective. I've never done it myself but planning to in this new setup. I've done searches on the topic and many comments suggesting that its beneficial but not to many go into detail why it is.

I really respect you opinion on all things growing... any insight on why you feel its not considered effective to burn co2 in veg would be much appreciated. Thank you.
Click to expand...

For what we are doing, and growing.

Co2 in veg. wastes money as it reduces returns.
It tends to make for longer stems and bigger node spacing... It does speed growth but, the cost of less node's alone kills the whole idea.

Now then, If you have a green house full of poinsettia's? Go for it! Also you use the gas light method to grow them, thus reducing lighting cost's..
 
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