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Are you sure u need 12 nozzles? I am pretty sure 1 or 2 max will fill virtually any sized chamber given longer spraying times- these things can output HUGE plumes of mist... Recommend buying the parts for a single test chamber first, and them making sure it all works well before buying your...

The Atomix used nickel plated brass, as are the ones I just bought. I don't wanna spend big bucks until I know they even work well... It's not much an issue as the time for contact is not so much as it just gets sprayed and is not recycled in DTW... ;)

Haha- great analogy :)... DO you have any links to reputable scientific papers in regards to ultrasonic cavitation making nutes more bio-available?

Yes, they did use the cleaning needle- many of the companies making aa nozzles have the option for that in their nozzle bodies. Since I am running sterile, I don't see te need for the extra cost and parts that could fail- not to mention I suspect the nozzle uses more air for actuating the...

Thanks for your inputs and sharing your experiences. I kind of assumed the same and am fine running sterile myself. That being said, perhaps someone will come up with a good blend of innoculents that won't have these issues, but I'm just fine with my sterile environment because it's so many...

We're all still testing various AA nozzles and none have come out as the end all be all that I know of, however- most are fairly adjustable and can be made to support a large range of conditions... It's likely that the best way is to use the pressure fed nozzles, however the simplicity of...

Thanks for chiming in! So how did you come across HPA, and could you describe your HPA system in some detail if you don't mind?

I think you are possibly overwatering your netcups... Try doing just a small squirt of water- just enough to keep them alive, but a small enough amount that the roots don't get soaked. Now is the time where you are going to notice you'll not get the extra-fast aero growth due to your not being...

Well, I am completely encasing the foamboard in fiberglass- like a surfboard, so that should keep me separate... Hoping the epoxy will be inert enough once cured?

I ran my JBJ Arctica at 35 degrees for 3 months without any issues... The electric bill was another story... haha. Yep- insulate! insulation is key in all of this...

Man I love DTW... Don't miss any of this balancing act - never looking back! :)

Root rot isn't the only issue, if you don't aererate the liquid the plants will drown in not too long. Also, soaking the roots would kill off all the root hairs, and set you back for days. The accumulator and 12v battery do the trick perfectly, and at no penalty, so it's a solved issue for me...

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Nice, sounds like you're getting it under control... Heat issues were my biggest issue, and now my designs focus on dealing with the heat head on... My newest chamber design will be made from 2" foamboard and has cooling lines running through the interior... :)

Very true, - plants started in aero barely shock when put to soil. It's not so forgiving the other way around however...

yeah, you're inviting algea. Also, only the black John guest tubing has UV stabilisers. Better idea is to put the black tubing in a conduit, perhaps a slightly larger diameter white tubing, or even better, some sort of foam surround tubing like they use to insulate water pipes or roll bars...

Just Size your rez in a DTW situation for a weeks worth of spray, -then take it off too- I certainly do... It would be cool however to make an automated rez refiller that could control the ppm and ph via phone app, and a webcam looking at the plants... You could pretty much take off the whole...

The jury is still out on whether siphon fed works well enough, let alone a particular model... Testing testing, trail blazing... I am not sure about the atomisation process damaging living cells, but I would not be interested in doing anything besides a sterile environment with AA, just for...

Yes, the roots may become the biggest issue since they grow so quickly with proper aero... Might be the one real reason to avoid it...

only issue, is you likely don't know the ratio of the composition, which leaves variables. Furthermore, the ppm likely changes throughout the year. Many places have vastly different levels between summer and winter. Lastly, if a good total starting ppm for aero is 150ppm, you already are...