Hydrofarm co2 regulators and the like

[greents]

So the hydrofarm co2 regulators state that they can not be used with controllers. Why is that? Cause the tank to drain/solenoid freeze?

has anyone used the regulator with a controller? What about an aftermarket timer? If so, how often would you run? 15min two times an hour? hr at a time?

thanks

 

[globel]

they freeze. The C.A.P. one does not freeze. I don't know why hydrofarms deal is but they don't want to upgrade it. But C.A.P. is the way to go on those regulators for sure.

And the time you release co2 is depending on the size of the room and your ventilation. I would never do this because you can never get the co2 level right.

 

[milehighmedical]

I have a C.A.P. regulator I believe, and I still haven't been able to get it to not leak CO2. I hope it's not this used bottle. It threaded fine with the washer and as soon as I crank it open it just pours out.

Not gonna drop a grand on a controller. Have to make the timer work here. Although I do have the C.A.P. controller to turn off CO2 in dark and when fans are on to vent humidity.

 

[greents]

so nothing can be done?

I have gotten conflicting messages from co2 calculators. from

Amount of CO2 required: 0.294 cubic feet
On time: 17.64 minutes

to

Optimum Flow Rate: 0.05 cubic feet / hr

How should I arrange/setup my timer to work correctly?

Also what about the flow meter; it does not look like anything hydrofarm has on its site

http://www.hydrofarm.com/pb_detail.php?itemid=7105

and the manual doesnt convey how to adjust it

looks more like this one but mine starts at 2 and goes to 20

 

[globel]

yea that's the one I had before my CAP. I think those ones are bad... well not bad just not compatible with a controller. If you know how to setup the timer your good to go. But if you dont and you want to run it with a controller you need the CAP one...

Milehigh: I think your bottle might b bad. The CAP one comes with a rubber grommet did you try using that instead of the nylon one that came with the bottle of co2.

 

[greents]

can they be powered by any type of timer?

 

[Diamonddss]

c and p
try this:

PROGRAMMABLE TIMER SETTING
Set your timer to go on continuously for 2.5 hours each day when your
lights turn on. This time period will bring your room level close to the
desired range. After this period, set the timer to go off for 15 minutes,
then on for 15 minutes. Repeat this on/off cycle throughout the lighted
period until 1 hour before the lights turn off.

DETERMINING A FLOW RATE
This is the basic formula for determining flowmeter settings:
cubic ft. of growing area x .0012 = A A ÷ 3 = B B ÷ 2 = flowmeter setting
To determine the flow rate for your growing area, follow the steps
outlined below.

Step 1
- Determine the cubic volume of your area:
Room height x width x length = cubic volume
Example: 8' high x 10' long x 10' wide = 800 cubic feet



Step 2
- Take desired level of CO2 (1500 PPM) and SUBTRACT existing
CO2; 1500PPM - 300PPM = 1200 PPM. This is the amount of CO2


you need to add to raise the level to optimum.

Step 3
- Multiply your room volume x .0012 (1200 PPM) to determine
how much CO2 to add to your area.
Example: 800 cubic feet x .0012 = .96 cubic feet.
For practical purposes we will round this off to 1 cubic foot. This is
the quantity of CO2 to add in an 800 cubic foot size room to reach the
desired 1500 PPM level.
Before continuing on to the next steps the following assumptions need
to be established:



FIRST ASSSUMPTION:
The average growing area enriched to
1500 PPM of CO2 will return to normal levels in about 3 hours
due to plant usage and room leakage.



SECOND ASSSUMPTION:
When calculating the flow rate for any
growing area, this usage and leakage of CO2 should be compensated
for in that particular area.



Step 4
- Now for the 800 cubic foot room, we take the approximately 1
cubic foot of CO2 and divide it up over the 3 hour average period into
1 hour increments. There are 3 one hour periods in 3 hours.

1 cubic foot ÷ 3 = 1/3 cubic foot of CO2 (.333)

This means that every hour an 800 cubic foot room needs 1/3 (.333)
cubic foot of CO
2 to replenish it back up to 1500 PPM. Because our
system operates on a 15 minute OFF / 15 minute ON cycle, the flow
rate setting should allow 0.1665 (or 0.2) cubic foot of CO2 to be emitted
within each 15 minute ON cycle.

To arrive at the appropriate flow rate setting we need to divide .333
by 2 (there are two 15 minute ON periods per hour) to reach the flow
rate per hour (.333 ÷ 2 = 0.1665 cubic feet per 15 minutes of flow).
For practical purposes, round this up to 0.2 cubic feet. This is the
flowmeter setting.

After following the regulator adjustment steps, set the flow with the

flowmeter adjusting knob as described above.

 

[milehighmedical]

yea that's the one I had before my CAP. I think those ones are bad... well not bad just not compatible with a controller. If you know how to setup the timer your good to go. But if you dont and you want to run it with a controller you need the CAP one...

Milehigh: I think your bottle might b bad. The CAP one comes with a rubber grommet did you try using that instead of the nylon one that came with the bottle of co2.

The regulator came with two little plastic ones, and that's what I'm trying to use. The bottle didn't come with anything? Used bottle.

I hope it's not a bad bottle because I don't have a receipt and they'll just offer me anew one for $170.