Just to be clear and avoid any misunderstanding, Henry says, "At a constant temperature, the amount of a given gas that dissolves in a given type and volume of liquid is directly proportional to the partial pressure of that gas in equilibrium with that liquid." You might study up a bit on this. And you're absolutely correct, the average American does pay very well just for convenience.
New oxygen technology in RDWC DWC pot grows
- Thread starter J Henry
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dstroy
Well-Known Member
No, I'm pretty sure he does mention something about temperature and solubility. So you might want to study up a bit on this.
WeedFreak78
Well-Known Member
Do you even understand what the part in bold means?
Let's use a bottle of Coke. When it's new and sealed, the gas pressure above the liquid and in the liquid are in equilibrium. Once you open the bottle, and expose it to atmospheritc pressure, the gas pressure above the liquid drops, creating an area of partial pressure of the gas in equilibrium with the Coke, meaning the pressure outside the liquid is less than the pressure of the gases dissolved in the liquid, allowing the supersaturated CO2 to escape the liquid.
Now answer my damn question, charlatan.
Yes, there, something about temperature and partial pressure of the gas here.
OK, 1 more time, now really try to pay attention this time.
In a mixture of gases, each gas has a partial pressure which is the hypothetical pressure of that gas if it alone occupied the volume of the mixture at the same temperature. The total pressure of an ideal gas mixture is the sum of the partial pressures of each individual gas in the mixture.
Can you guess or determine what the partial pressure of 20% oxygen is when the source is gas mixture is air? How about 159 mm/hg or so at sea level. Now it should be easy for you to see the oxygenation problems with air.
PerfectGrower
Well-Known Member
Oxygen levels are important in preventing root rot but temperature is just as important.
A water chiller is safer than "adding more oxygen"
A water chiller is safer than "adding more oxygen"
I think he's waste of oxygen personally.
Great
PerfectGrower
Well-Known Member
We've been around hydroponic grows for the last decade. Over that decade, we have across root rot. Every single time it was directly correlated to a temperature issue over multiple days (water chiller failing).
The day I see someone get root rot at 68F with enough oxygen enrichment will be the day I change my opinion on that. That day has not come yet
The day I see someone get root rot at 68F with enough oxygen enrichment will be the day I change my opinion on that. That day has not come yet
redi jedi
Well-Known Member
I've had the snot looking clear slime develop in my systems even with chillers and plenty of aeration. Water quality differs from place to place and even people using RO have had problems. IMO, a good sterilization regime is more important than chillers.We've been around hydroponic grows for the last decade. Over that decade, we have across root rot. Every single time it was directly correlated to a temperature issue over multiple days (water chiller failing).
The day I see someone get root rot at 68F with enough oxygen enrichment will be the day I change my opinion on that. That day has not come yet
PerfectGrower
Well-Known Member
You could very well be right.....Ive personally never seen it.
redi jedi
Well-Known Member
Browse through the hydro section threads...you'll see its pretty common.
brokencage
Active Member
This!We've been around hydroponic grows for the last decade. Over that decade, we have across root rot. Every single time it was directly correlated to a temperature issue over multiple days (water chiller failing).
The day I see someone get root rot at 68F with enough oxygen enrichment will be the day I change my opinion on that. That day has not come yet
brokencage
Active Member
I have got slime at low temps but never pythium. I run the lucas method and don't dump my res the entire grow. if I get a little slime I add h2o2 & wipe the sides of the res then filter the nutrient through a fish filter no active carbon for a day. slime stays gone for a few weeks or more. I keep my res temps between 67-70F I keep it insulated and use frozen water bottles.I found keeping crap out of the res works best. wipe the lid off before you open it &use a test jar so you can close the lid while you test.
SoOLED
Well-Known Member
if this is true, can we lock this -ish
Just so we are all on the same page and have a clear understanding of what you are trying to say and what you really mean…
What exactly is your definition of “oxygen enrichment?”