Let’s Confuse Oxygen With Air Some More… What Is The Difference In Rdwc

[PhatNuggz]

Not using RDWC- it has issues that seem unnecessary to deal with. I use a DIY bubbler for seedlings and clones (and on occasion to finish a plant), then transfer to my Mini-Me F & D system. Pic is one I did not have room for in my F & D tents so I let her finish in the 4 stone @ >13 L/M bubbler

 

[J Henry]

So I'm the guy mentioned above with a DO sensor/controller in a UC system. I wouldn't characterize maintaining DO in an RDWC as problematic necessarily, but rather as just another variable to monitor and control. Many are happy assuming that DO levels are at least to saturation, but I prefer not to leave things to chance. I'm also a guy who owns a quantum light meter and UVB light meter. Again, many are happy with round-about ways to get at light levels; I prefer to be a bit more precise.

I'm hoping to achieve at least O2 saturation during my grow and potentially even slight super saturation. O2Grow is the electrolysis device I'm going to try to control. According Dennis, the owner of the company, their system performs very well in flood and drain type systems (in terms of super saturation), but the jury is still out in RDWC systems. I will document my findings during my grow. If the O2 Grow system works well, it will be nice to get rid of the air pumps! :cool:

Ace Malawi And Cycloptics Greenbeams: Caught In The Under Current!

Pentair DO Meter http://pentairaes.com/dissolved-oxygen-meter-kit-850048.html PART #: 850048 to 850048PHPART #: 850048 to 850048PHPART #: 850048 to 850048PH$83 - $476 includes 5 year warranty

The cost of Pure Oxygen vs. Diffused Air http://pentairaes.com/learn-about-aquaculture/technical-talks/pure-oxygen-vs-diffused-air-tt7

Read about the Importance of Dissolved Oxygen in Aquaculture http://pentairaes.com/learn-about-aquaculture/technical-talks/dissolved-oxygen-in-aquaculture-tt1 “The first limiting Factor of water quality is dissolved oxygen” Aerobic Beneficial micro-organisms in RDWC must have a steady supply of oxygen (100% DO Saturated) and well as plant roots and root zone in order to thrive and prevent fungal outbreaks.

Oxygen or Aeration http://pentairaes.com/learn-about-aquaculture/technical-talks/oxygen-or-aeration-tt80

Venturi http://pentairaes.com/learn-about-aquaculture/technical-talks/venturis-tt63

 

[ken dog]

The oxygen bubbles are so small, they do not break the surface... The bubbles that break the surface are the hydrogen bubbles (which are explosive).
Does that worry anyone else?

 

[J Henry]

The oxygen bubbles are so small, they do not break the surface... The bubbles that break the surface are the hydrogen bubbles (which are explosive).
Does that worry anyone else?

The salesman says don't worry, be happy, there ain't nothing to it. But that's the salesman's opinion... and his job is to sell, sell, sell product, the more he sells the more money he pockets. I believe that hydrogen can explode like propane, butane, acetylene gas and gasoline fumes.

 

[ken dog]

Well yeah... It's bad enough that chlorine emits chlorine gas below 6.0 pH.

Don't need a grow blowing up because of hydrogen gas.:)

 

[J Henry]

Well yeah... It's bad enough that chlorine emits chlorine gas below 6.0 pH.

Don't need a grow blowing up because of hydrogen gas.:)

Good point.

 

[J Henry]

Well yeah... It's bad enough that chlorine emits chlorine gas below 6.0 pH.

I see a lot of growers here like to use Clorox? Have you ever heard of - Chlorine Toxicity? http://emedicine.medscape.com/article/832336-overview

Have you ever inhaled Clorox fumes trying to kill root rot? Ever had any of these symptoms while or after treating root rot with Clorox? This only takes a small dose - 1-15 ppm.

• Eye tearing, nose and throat irritation
• Sneezing
• Excess salivation
• General excitement or restlessness

Be sure to always read the direction on the Clorox bottle label and follow those directions. Chlorine gas toxicity is preventable.