Those are good finds, it is an interesting problem. I think the really pertinent part in the case of this generator is that no matter how it was set up it, if it was possible to reach the desired co2 concentration the other gas would build up enough to cause the symptoms.
It seems like in most of the other threads about it people were able to fix it by periodically venting the room. That definitely did not work here. I think it would be a fair assessment to say that different generators (or maybe different room configurations) cause different amounts of the gas.
The pic that testymctester posted is a spot on perfect example of this problem, Im glad he took it. I never pulled a plant out and really documented it. I think this happens more than people think, just on varying levels.
No you are on to something, that is exactly the issue we are talking about here. The only difference between their situation and mine is that mine could not be fixed with periodic or even constant (mild) air exchange.Well at least it makes for good reading, thought I was on to something XD
Ya I would have thought VPD myself at first, that and N tox, mag def, but I promise you what you are looking at in that picture is the effects of what ever byproduct of combustion this is.testy's pic looks like the VPD I was hit with on my 1st round in a sealed enviroment.
drooping leaves, sign of a mag and or lockout issues.
never a prob unsealed and i had the same temps and RH.
but in the sealed situation these probs hit in when RH went below 60%Rh and very quickly/severely when i hit below 50%rh
btw newguy,
I went closed loop on the HW tankless Co2 gen for a while but the 40gal trash can used took up too much waste and was a prob with getting water nasties in it too fast and having to clean it more than i had time for.
i went drain to waste after, since it cycles on for less than 30sec. I doubt i dump more than 7-10gal a day
Alllllright. So maybe found something.
For one thing, you can try raising your temps closer to the low 80s, (tying in to the whole reason we can raise CO2, when the earths atmosphere was different and temperatures were warmer). There are calculations for specific ppm of CO2 to temp ratio, I think Snype posted them here, though I may be wrong.
Anyway,
Specifically, this post
The initial problem sounds similar, CO2 burner in a fully sealed room, plants droop and falter.
Summarized, the CO2 burner depletes O2 levels, causing incomplete combustion of the propane, leading to ethylene and SO2 build up.
At the least I've significantly added to the general confusion XD Maybe helped, maybe not, but some good reading if you enjoy that sort of mental racking.
the only diff between nat and propane burners are the opening size on the jets, nat runs way lower pressure and has a larger opening on the jet.mSome generators are designed for Natural gas, some for Liquid Propane. They need to be setup correctly. I forget which one, but there is a reducing fitting that goes in the gas piping. if you have a nat gas generator an running LP there will be issues.
Just a thought..
b-safe
excellent posts, lots of food for thought
things seems to come back to the O2 depletion scenario
as long as fresh air is periodically pushed in things are good.
and what exactly are the ppms when the burner is used.
maybe there's an occasional bad batch of propane,
enuff to cause these probs in grows.
if I exp. it i would go to a tank asap and not want to exp. those probs again, maybe a diff. tank of gas would make a diff.
Some generators are designed for Natural gas, some for Liquid Propane. They need to be setup correctly. I forget which one, but there is a reducing fitting that goes in the gas piping. if you have a nat gas generator an running LP there will be issues.
Just a thought..
b-safe
That's a good point as well.
All you bottled users, have you got any numbers on price difference or is it marginal one way or the other? Of course it would depend on your base price per bottle, size of bottle, etc. Perhaps a good link to avoid threadjacking?
Haven't looked at bottled in awhile, but I was about to start poking around here and elsewhere for price comparisons and it might save some redundant searching.
This is the impression I got from everyone when I asked if it was possibly mislabeled. They said it wouldn't hook up.the only diff between nat and propane burners are the opening size on the jets, nat runs way lower pressure and has a larger opening on the jet.m
any co2 gens come with the extra jets for either one.
it probaly wont work using nat gas -->propane burner
big fire hazard immediately using propane--->gas burner
Definitely had the humidity dealt with, honestly most people running mini splits or central air aren't gonna have much of a problem. For whatever reason it kind of works out that by the time the AC has dealt with the heat from the burner it has also dehu any RH associated. Have plenty of dehus and definitely have the room well monitored (kind of an environment junky)
Honestly whatever this problem is/was it was extremely insidious in the sense that all parameters were as close to perfect as is possible and yet the general health was so low.
All I can really say is if you are running a sealed room with a generator and you are fighting phantom problems and a lack of general health do yourself the biggest favor and switch it up to bottled gas for a minute. LOL everyone has an old bottle laying around, and holy shit what a difference it made. Can't tell you how frustrating this was to deal with.
propane leaks have been known to cause explosions... If ur going to run a co2 gen inside (a building code violation in most states I believe) check for leaks often... Cause it could go boom
I'm such a tool aka hypocrite.. I was just re reading this thread and found this advice I gave.. I haven't checked any of my burners for leaks in at least 3 years... Lol. I guess I prob should
A gasfitter is trained to properly clean burner manifolds.
Some grow stores offer this service but one has to wonder if it performed by a qualified person or simply someone trained to the task.
One suggestion, after installing a CO detector, would be to observe the flame periodically during light cycle. If the burner gradually becomes yellow, the issue may be incomplete combustion resulting from oxygen deficiency. Not easy to diagnose as each time you enter you are introducing fresh air.