how would you run co2 and scrubber with no controller?

[jimmie]

i cant afford a controller right now so ill have to use timers.
i have 20# tank of co2 with regulator ,carbon scrubber,window a/c,space heater.
84 sft area
210 cfm exhaust fan
sealed room
sealed air cool light(400 watt digital)
i would like to know how to run this the most efficent way without wasting to much.
for ex: when my lights come at night my scrubber will turn off than my co2 wil spray for 15 mins than turn off, leave scrubber off for another 15 mins(letting it soak in) than turn on scrubber for? i read some where that co2 will only last 3 hrs due plant usage and leaks. how often should i do this in a 12 hr period? also
what do i do about the a/c or the heater at this time?

 

[Philbert]

http://www.hydroponics.net/learn/co2_calculator.asp

 

[clide]

are saying you have an exhaust that isnt for for the light?

i dont think you have a sealed room my friend. what i suggest you do, duct the a/c into the room, put it on a y fitting, on one of the outs put a fan to the cool tube and then to another y fitting, after that y put another fan and duct that back to the a/c input. set your scrubber up with a timer and have it run it 15-30 on and the same amount of time off.

that way then your room is sealed, the a/c will go through the light but also be dumped into the room, then the exhaust fan will pull air through the cool tube but also from the room. the scrubber doesnt need to be in this loop because it would only add resistance. then you can just add co2 and there will be no loss of it except from the carbon scrubber. so i suggest mounting the fan from the ceiling since co2 is heavier than air. i would then also keep an oscillating fan blowing on the plants but id aim it more at the stem/pot area to help whip up the co2.


good luck with your room

 

[sparkjumper]

Take my advice man dont bother until you can afford a controller,just gassing the room willy nilly accomplishes nothing.I wouldn't even use a cyclestat,only a controller is effective

 

[jimmie]

i also have a dayton 465 cfm on my 400 air cooled hood

 

[clide]

Take my advice man dont bother until you can afford a controller,just gassing the room willy nilly accomplishes nothing.I wouldn't even use a cyclestat,only a controller is effective

what your explaining is that you dont have your room dialed in and dont know exactly whats happening within it. thats ok but that doesnt mean that using math is willy nilly. physicists around the world would argue that math is NOT willy nilly.

if you cant afford a controller(there are none that are under 400$), in addition to the 125$-250$ co2 setup, AND your room is sealed, there is no reason you cant use a cycle stat. if you have the money and dont care, buy the controller, but having a controller doesnt mean that your not losing co2, having a sealed room does.

otherwise, if you can control the environment in your room, ie the placement of fans, ducting, and lights, a/c, then you can easily guarantee the correct conditions for co2 and feed your plants. how frequently you have to add co2 is up to your plants.

 

[jimmie]

the controller will turn off your fans for you when co2 is needed and measures the air i think?
i dont think i really need one? and yes im just trying to dial evrything in

 

[sparkjumper]

Go ahead,but get some co2 syringe test kits so you can see your PPM flutuate like shit lol.Math is fine to calculate room size,please don't take into account the number of plants or what stage of flowering they are in.It doesnt matter.A cyclestat works just fine lolEDIT How frequently you have to add co2 is up to your plants???Man you obviously havent grown with co2 enrichment.You dont know what you are talking about as a matter of fact.

 

[jimmie]

how long does smell stay in room before scrubber is needed?