Fatman, What about non-dwc type systems?
What would the ideal and practical DO enrichment method be for a 100 gallon res that is hooked up to a simple drip feed irrigation system?
Would a small pond aerator be sufficient since turbulence wouldn't play a role?
Where are your charts and links fatman showing your opions/facts?
I use reference books from my library as I am an engineering professor (Environmentaland Civu il) so I have many bboks in my home office as wellas at work. I can post charts links and reports if you wish though. This one has been previously posted and show rice DO requirements to dethe sane with DO at 2 pm or higher. To obtain all information you need to have an account to purchase the full paper(s) so I down load them and read them in entirety. The University pay for abstracts I down load. IE free data and knowlege base materials.
Here is a DO Chart:
Further links:
http://www.actahort.org/members/showpdf?booknrarnr=440_36
All of these links havebeen posted un this forum by squarepusher.
Why does my fish tank have a simple air stone to help provide oxygen if its useless to the fish? The oxygen must get into the water somehow right?
The water maintains dissolved oxygen based upon temperature, pressure and salinity. It requires little to maintain DO at sati urtaion levels unless you have huge numbers of fish, or have a reef tanjk with manycorals using DO. The DO comes from the oxygen in the air bubble dissolvo inf g in thw a water. It will do that inoder to maintain saturation levels of DO. The fish extract DO from the water by passing water over their gills. With just a few fish in a tank or bowl an airstone is not even need to maintain DO at normal saturation levels as that oxygen ican easily enter the water at the waters surface.
I, like Lost, am a bud farmer and dont give a shit about science crap. Sad that you are that way but if ignorance suits you that is fine. I'm not book educated cause i realized they only generally teach you in a perfect world type of shit. Far from the truth but you can use what ever excuse you to maintain a lack of formal education. That is your choice. Growing weed is never in a vacum or perfectly pressurized so why go into all the bs. WTF We like to just Keep It Simple Stupid. Dude, there is an ignore feature, please use it as I am not going to try to write at a grade school level for anyone, especially for those insultive of primary education and of me just because they lack the ability to understand high school grade level write ups. I am keeping it very simple. Educated people can understand the simple things I write. I can not however expect uneducated people to learn much when they choose to ignore simple science. We are not talking rocker science dude. Any high school graduate (except possibly California) should be able to understand everything I have written. If you want comic book versions then buy a mj growing book, Most of them are written at about 9th grade reading levels.
I was reading the specs provided on this page:You got it!! Use a blower instead of an air pump and use at least 2 large diffusers or four smaller diffusers in each reservoir. This is what you want in the way of diffusers:
The secomd option is to use the existing air pump with the coarser bubble difusser by link above and use a needle wheel pump instead of a Danner pump as supplied by the undercurrent people.
I'm not familiar with a venturi other than the protein skimmer type for aquariums. Are these made with a regular mag drive pump or is there any special equipment involved? Thanx -KeepzIplay4keepz, skip the blowers and just make a venturi. no reason to make that kinda of noise, a 750gph pump, with 1/5th the watts, made into a venturi will create just as much DO
basically you put a pump in your res, the outlet you add a 4inch piece of tubing, in that 4in piece punch a hole as close to the pump as possible and put a 1/4in double barb connector, then attatch a 1/4 piece of tubing to that connector, it has to be long enough to exit the water by a couple inches. I twist tie mine to the power cord so it stays out of the water
what this does is as the water is pushed through the pump, it creates a vaccum that draw air from that 1/4inch piece of tubing, causing it to mix with the water as well as mixing your nute and creating nice turbulence
hahaha I totally agree squarepusher, Honestly the dude is just spinning his wheels. I wouldnt be running any DWC without some serious water movement. airstones about
4th on the list of things I would use to try and create DO, but they do create DO in more than one way
People take a chill pill.
We are all here to Learn.
FatMan seems to have a wealth of Knowledge above and beyond what most have on the science end of things. He might have as much if not more real world experience as well( just because he does not talk about it does not means its not there). Sure his delivery can be a bit rough but thats the way some people roll. He is Coming from an Engineering Backround, I don't know how many Engineer's you guys know but the ones I know are Just on a different Level as far as thinking and the way they do things.
If people don't care about the real world science end thats fine. But its a very critical factor to know and understand how things work on all levels. IMO
Also not did I see Fatman say UC's were Bad??? To me it seemed as though he was pointing out the Flaws and Limiting Factors that Most DWC/RDWC system's have and how to Improve on them. JMO
Too true.....though I don't believe having information to be a license to be an ass to members of the Farm...or anyone for that matter.:bow
No one's dismissing the validity of the info....I just think when someone's being rude they should get checked, plain and simple.
Lot's of great info is passed between folks on the Farm with no disrespect necessary....let's keep that theme alive by keeping newbies (no matter how articulate) communicating respectfully.
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