dwc oxygen question for experienced only...

so i get 100% oxygen and the air we breath is what only 30%? the question is what will the pros be to using this instead of the regular old pumps i have a regulator so i can go to any litre per hour or min i need to, will i have a bigger yield and higher potency? Or am i just going to have to experiment.

people been looking no response?

I'd say experiment around mate.
Keep it logged and share your info.
Ill look between some files if I have anything for you.
Hoped I Helped,

-Nice Ol' Bud

It does seem like i will have to experiment no one has logged this yet, i will be putting my room together sometime in 2011 i will be posting the link in here for anyone interested in results of this experiment that no one seems to have any info on?

i think i remember something on the forums from a few years ago with a question similar to this. and a response was some guy tried it and didnt notice to much of a difference. i think the guys suggestion was aeroponics to get most oxygen to roots(obviously)

will have to research areoponics i guess.

As I recall, "air" is more like 20% Oxygen - "No biggie!".

The point is, if you are injecting "Pure Oxygen" into your system - how will your plants get enough CO2? Yea, it's true, the roots love some Oxygen - but the leaves need a taste of CO2.

It seems, to me, that even a slight over-pressure of pure Oxygen would create a "Toxic Atmosphere" in the rest of your grow chamber (little or no CO2).

That being said, I'm not so sure that "Extra Oxygen" (to the roots) provides desireable results the way "Extra CO2" does (to the leaves) - at least I don't recall ever hearing about it!

well now you bring up another idea! Pure oxygen for the roots and a co2 maker for the rest of the plant what do you guys think?? Should i do this or what? Opinions on results only im going for it

My Air pump Pumps 1000 gpr or however they measure it but its the Metal industrial pumps for 60 bucks.. They do EFFECT the plants growth than with a smaller pump.

The main reason there is not a lot of information about this: Pure oxygen + hot bulbs + electrical wiring + enclosed space equal a fire or explosion.

But speaking hypothetically and just in theory: water is only going to keep a certain amount of oxygen in solution when under atmospheric pressure. And that amount is primarily going to be dictated by the temperature of the water as to how much it will hold unless you have hyperbaric conditions. It's the same reason you won't see much of a difference between using a small but capable diaphragm air pump and a commercial piston driven air pump moving massive amounts of air - either one is only going to aerate the water to a certain point and it's not going to go much above that despite how much total air you pump through the water.

TaoWolf said:

The main reason there is not a lot of information about this: Pure oxygen + hot bulbs + electrical wiring + enclosed space equal a fire or explosion.

But speaking hypothetically and just in theory: water is only going to keep a certain amount of oxygen in solution when under atmospheric pressure. And that amount is primarily going to be dictated by the temperature of the water as to how much it will hold unless you have hyperbaric conditions. It's the same reason you won't see much of a difference between using a small but capable diaphragm air pump and a commercial piston driven air pump moving massive amounts of air - either one is only going to aerate the water to a certain point and it's not going to go much above that despite how much total air you pump through the water.

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This was my thought as well. You only need to replace the dissolved oxygen slightly faster than it is depleted. Colder water holds more oxygen, and 65-68f seems to pretty much be the lowest range roots will thrive in. However many DWC growers notice a boost from pumping even more oxygen into the water than is needed to keep up with depletion. Also curious is the fact that after res change some growers report a growth spurt the next day, which is thought to be from the air bath the roots received during the change. So perhaps the roots like and use more oxygen than what the water can offer, which they receive when the air bubbles momentarily make contact with the roots. If those bubbles themselves contained more oxygen, it stands to reason they would be more efficient. I do agree 100% that at some point adding more bubbles ceases to increase yield or plant health, and that point happens easily without the need for pure oxygen. I personally stop seeing a benefit after 5wt per gallon air pump.

Yeah, I agree it's just a matter of replacing oxygen faster than what the plant depletes in DWC as far as oxygen content goes of the water. Although if you pump enough air over the roots (in the form of bubbles) you are in essence also decreasing the amount of water in contact with the roots at any one time, providing better water/nutrient movement over the roots through agitation (especially when the root mass gets thick), and other factors are probably in play that are beneficial with more air volume... so I'm not knocking high aeration - just that there is a point of diminishing return in doing so. And on topic, that I don't think the benefit of pure oxygen being pumped into water would be as beneficial as it might seem at first glace (and not very safe).

If anyone finds anything that says otherwise I'd be really interested in reading about it though.

yea but would it be cost effective? Seems like a lot of stuff and money. Then your o2 will just rise out of the water into the air because the roots wont take it all in and then in will cancel out the co2 in the air when it rises. Depleting the co2 enriched environment. I dunno never tryed it but thats my hypothesis.

Well im going to give this safety hazard a try lol! I will post a link here when i start the grow journal.