Sealed room droopy plants

[spoon1g]

I'm running 24,000 btu minisplit with LP generator on chhc4 controller ppm set at 1200. The plants seem to be droopy and not perky. Do I need to exhaust every few hours so there's eniugh O2 for the burner?

 

[dreams4dreamin]

Any pics?

 

[spoon1g]

Lights off

 

[DoubleTripleOG]

That may be one cause, but there is a lot of things it could be besides that. What's the medium they are in? How much are you watering them? How long does it take for the room to fill with co2?(how long is the generator on) How big is the room? Lots of variables to take into consideration.......lots of mis-information flying around the forums these days, about co2 genny's . I have been running sealed rooms for the better part of a decade and have never had problems running an LP co2 genny. EDIT: they look super dry, do you let them get that dry on purpose?

 

[shredGnar]

Do I need to exhaust every few hours so there's eniugh O2 for the burner?

I say yes. This has become a popular topic lately...

I was having the same issues and it took me forever to figure it out.

I made the switch to bottled CO2 and got the results I was looking for.

Also... Get a dehumidifier if you haven't got one already.

You can read about it here

https://www.icmag.com/ic/showthread.php?t=297479

 

[Wendull C.]

do they only droop after the lights go out?

 

[CHEFfy]

Also at night during transpiration, plants frequently droop. If they don't perk up when lights come on, you have a problem.

 

[shredGnar]

That may be one cause, but there is a lot of things it could be besides that. What's the medium they are in? How much are you watering them? How long does it take for the room to fill with co2?(how long is the generator on) How big is the room? Lots of variables to take into consideration.......lots of mis-information flying around the forums these days, about co2 genny's . I have been running sealed rooms for the better part of a decade and have never had problems running an LP co2 genny. EDIT: they look super dry, do you let them get that dry on purpose?

His pic looks like my plants did when I was running the LP burner.

Not saying that's definently the cause but its my guess. If there isn't enough O2 in the room the burner produces ethelyne gas when it fires up, which will cause problems just the the OP is seeing.

Like you said there are a lot of differences like cubic footage of the room and the plant mass. I personally have low headroom and pack my room with plants.

In my opinion the more plants/cubic volume the more the plants suck up the CO2 and causes the burner to come on more often, using larger amounts of O2 and potentially depleting the room causing the ethylene gas.

 

[spoon1g]

That may be one cause, but there is a lot of things it could be besides that. What's the medium they are in? How much are you watering them? How long does it take for the room to fill with co2?(how long is the generator on) How big is the room? Lots of variables to take into consideration.......lots of mis-information flying around the forums these days, about co2 genny's . I have been running sealed rooms for the better part of a decade and have never had problems running an LP co2 genny. EDIT: they look super dry, do you let them get that dry on purpose?

Room is 11x11x8. Sunshine mix 4 soilless. Been feeding them 1.2 dc with cyco full line + ro water. The room has a 70 pint dehumidifier. It takes about 3-4 minutes to fill room up to 1200ppm co2.

 

[dank.frank]

Yep...plants will droop down at night naturally...or when they are not getting enough water.

Plants MAKE oxygen...I'm sure they are putting out way more than enough for the flame of a small burner. That being said, I'd set your controller to on at 900 and off at 1100.



dank.Frank

 

[DoubleTripleOG]

Yep...plants will droop down at night naturally...or when they are not getting enough water.

Plants MAKE oxygen...I'm sure they are putting out way more than enough for the flame of a small burner. That being said, I'd set your controller to on at 900 and off at 1100.



dank.Frank

Church....preach....

 

[spoon1g]

And lights off co2 Ppm stays 800-1000. Is that an issue

 

[CHEFfy]

Plants transpire both h20 and co2 at night.

 

[shredGnar]

So are they drooping with the lights on or only while lights out?

 

[Aksala]

What temp are you keeping it? My plants droop when temps go below 65f

 

[shredGnar]

https://www.icmag.com/ic/showthread.php?t=236262&page=38

Check out post 569..

This is how I learned I was dealing with ethylene gas poisoning.

Geto mentions having a dirty flame, however my flames looked blue and I even had the high altitude jets.

I switched to bottles and got what I was looking for. I even went to an exhaust fan for a bit and my drooping plants perked up overnight.

I realize lots run generators/burners no problems but it was not the case for me.

 

[Mikell]

FWIW, if ethylene is an issue it should trip a CO alarm with a low set point, <50ppm. Newer household CO alarms will alert at 70-100+ ppm, held for a duration of 5-10 minutes. Partial combustion is easy to observe, though not exactly a reliable test.

That may be one cause, but there is a lot of things it could be besides that. What's the medium they are in? How much are you watering them? How long does it take for the room to fill with co2?(how long is the generator on) How big is the room? Lots of variables to take into consideration.......lots of mis-information flying around the forums these days, about co2 genny's . I have been running sealed rooms for the better part of a decade and have never had problems running an LP co2 genny. EDIT: they look super dry, do you let them get that dry on purpose?

If you believe it's misinformation, join the discussion and contribute your experience. Nothing is advanced by only hearing one side.

 

[theother]

It looks like it could be the same problem I had with a generator. Consider getting a regulator and maybe borrowing a bottle for a minute. Run a few days on bottled and see if it improves. Solved my problem 100%

 

[shredGnar]

It looks like it could be the same problem I had with a generator. Consider getting a regulator and maybe borrowing a bottle for a minute. Run a few days on bottled and see if it improves. Solved my problem 100%

X2

 

[spoon1g]

So are they drooping with the lights on or only while lights out?

Leaves stay flat lights on not perky. I've ran intake/exhaust setup before and fan leaves are much bigger then this co2 setup. Don't know what's the issue