Any way I can do this? I want MORE air in DWC!

[FreezerBoy]

You have the water pump on 24/7, pumping the water up the tubing, and then waterfalling back down when its 2 or three inches above water.

First, Welcome to IC, thank you for playing...

That said, this would probably result in a drop in DO. Such a small drop would provide little, if any aeration. The water pump would heat the res restricting it's ability to hold O2.

DWC prefers water temps around 68ºF. Few people like to live in a 68º home. While warm water DWC doesn't have to be a death warrant, it can lead to failure and should be avoided.

 

[Anacsot]

I've been thinking would some kind of submerge fan do the trick to brake the water surface, move the water and aerate it? Would waterfall and this fan thingy work I might try it sooner or later.

 

[hippydan]

I know this thread isn't specifically about H2O2, but since it's been brought to the table for discussion I want to throw this question out to you guys. I have a friend taking his master gardener course in FL, he's also asian so he tried the medschool/lawschool route, he's smart, probably borderline genius (for what it's worth). Anyway, we talk a little bit about growing, and as soon as I said anything about what he thought about adding H2O2 to my DWC's reservoir, he cringed. He claims H2O2 by itself would be fine, but that there are carcinogens in the solution as well, and he wouldn't want those in his system. I tried to find some info regarding the subject but found none. Is he just blowing smoke or does what he say have any truth behind it?

PS: Waterwheels are one of the most efficient ways of adding DO by means of surface disturbance. (waterfalls are great too!)

Thanks for helping out, and sorry if I'm a little off-topic.

 

[Scrogerman]

I've been thinking would some kind of submerge fan do the trick to brake the water surface, move the water and aerate it? Would waterfall and this fan thingy work I might try it sooner or later.

Have a look at Powerheads for Aquariums, Circulate & Aerate the solution, i remember somone back on OverGrow having success with them(used PH's only).

 

[Anacsot]

Have a look at Powerheads for Aquariums, Circulate & Aerate the solution, i remember somone back on OverGrow having success with them(used PH's only).

Thanks. They look great for the job.

 

[Scrogerman]

Thanks. They look great for the job.

NeWave 3000 looks like a decent one at a reasonable price. Im getting one or three myself! Stay away from the Magnetic attatchable ones. I think consideration of any heat they may generate should be taken into account too.
(3 year warrenty on the NeWave i noticed, 3100lph & only 5w too, you cant go wrong)
http://www.completeaquatics.co.uk/store/product/1516/Newave-3000-Circulation-Powerhead-Pump/

 

[Scrogerman]

Your right, increased O2 does help with growth.

I found an actual paper that says that increased saturation of O2 increases roots production. http://www.eurohydro.com/pdf/articles/gb_dissolved_oxygen.pdf

Is there a larger Oxydator? or something similar? How about using a Oxygen Concentrator instead?

Thanks for the link man, interesting one. not sure on the O2 concentrator, those Oxydators are pretty cheap, but the tec is simple, so they should be real easy to replicate.

Cheers man!

 

[Scrogerman]

Here's a link to a thread where a few brave souls are attempting to put together a DIY oxygen generator. It's based on HHO fuel cells, except for our purposes we vent the hydrogen and the pure oxygen bubbles produced are so small, they can't break the surface of the nutrient solution, creating a nutrient/oxygen slurry that carries more oxygen than the solution can dissolve (oversaturation) and produces explosive growth. Check it out.

http://www.cannabis-world.org/cw/showthread.php?t=6062

Ive already got the product & company bookedmarked, but thanks for the link bro, cool always into a bit of DIY. Supersaturation of O2 sounds good to me, more DO(optimal levels 30-100ppms) the better the nute uptake. ill be using either Oxydators or a DIY version in the future, can stay with the organic based addys then.

Cheers Bro Good Call!

 

[Anacsot]

NeWave 3000 looks like a decent one at a reasonable price. Im getting one or three myself! Stay away from the Magnetic attatchable ones. I think consideration of any heat they may generate should be taken into account too.
(3 year warrenty on the NeWave i noticed, 3100lph & only 5w too, you cant go wrong)
http://www.completeaquatics.co.uk/store/product/1516/Newave-3000-Circulation-Powerhead-Pump/

What do you think, which one would be better? The one that brakes the surface and moves water or the one that just moves water (super fast tho)? I really can't make my mind. Both look really really good.

edit. The other power head that i was talking about is Aqua Clear 20 Power Head. Just forgot to mention.

 

[krest]

Go buy a commercial air 7 from eco plus and split it into only two lines... youll have more air then you know what to do with....

Wow the price on those are great! Thanks for the tip.... better than the Alita I suggested IMO.

 

[zachrockbadenof]

a question... we have 24 waterfarms going, want to add more air.. if we get the eco+ comm7, and get a few manifolds, to make 24outlets, and run an airline into the bottom of each bucket will this work... ie will it supply enough extra air

and if it does supply suff air, do we put an airstone on the bottom, or can we just leave the airline dangle-ing at the bottom in the water/nute mixture..

thanks

 

[Scrogerman]

What do you think, which one would be better? The one that brakes the surface and moves water or the one that just moves water (super fast tho)? I really can't make my mind. Both look really really good.

edit. The other power head that i was talking about is Aqua Clear 20 Power Head. Just forgot to mention.

Sounds a little noisey the AC20(link below) but could be decieveing, id say a bit of both, which could easily be achieved with the NeWave, alot of these powerheads look efficient to me though. One or three of those Newaves & a couple of Oxydators for H2o2, & you'll soon have an O2 supersaturated solution. Id like to find out just how much added D'O these oxydators add to solution.(best do a search)

http://www.youtube.com/watch?v=0cl6ciBnGpk

 

[fireburner23]

Ive already got the product & company bookedmarked, but thanks for the link bro, cool always into a bit of DIY. Supersaturation of O2 sounds good to me, more DO(optimal levels 30-100ppms) the better the nute uptake. ill be using either Oxydators or a DIY version in the future, can stay with the organic based addys then.

Cheers Bro Good Call!

I would love to get a HHO titanium generator, but I haven't had much luck finding one. It seems far too simple to submerge a HHO generator and walk away and get high DO levels.

More research into this is needed. I sense an opportunity here.

 

[Haps]

Guys, powerheads are only good IF you need to add heat to your res every minute of every day. A powerhead will add 2-10 degrees to your res depending on the size and your environment. I got a dozen used ones, air pumps are a much better all around solution.

 

[FreezerBoy]

What do you think, which one would be better?

Either one will heat the res. This is fine for aquariums where most homes are colder than the tank. This is why most aquariums use heaters.

DWC, on the other hand, uses chillers to keep water cooler than the surrounding area. If your ambient room temp is lower than 68ºF (something most growers avoid as plants prefer a higher temp) heat increase is OK. If your ambient temps are in the more common 75º and higher stage, a heat increase could see water temps in the 80s. This could require the use of a chiller ($200-$800) or daily ice bottles to keep temps down.

 

[fireburner23]

Either one will heat the res. This is fine for aquariums where most homes are colder than the tank. This is why most aquariums use heaters.

DWC, on the other hand, uses chillers to keep water cooler than the surrounding area. If your ambient room temp is lower than 68ºF (something most growers avoid as plants prefer a higher temp) heat increase is OK. If your ambient temps are in the more common 75º and higher stage, a heat increase could see water temps in the 80s. This could require the use of a chiller ($200-$800) or daily ice bottles to keep temps down.

I should point out that using a HHO generator will saturate the water with oxygen bringing up the levels of DO in the water above what a air-pump would be able to do, even if your water temps go up from the HHO generator, the HHO will be able to saturate the water with so much oxygen that you should be able to keep the bad bacteria in check.

I think that it would be beneficial to have a chiller and the HHO generator working together, but that is me.

I am in the research process to building the HHO generator from the cannabis-world link out of titanium. I'll probably post a separate thread as a how-to thread, hopefully adding on to the cannabis-world thread and giving those here at ICMAG the added benefit of levels of DO above 100%.

 

[zachrockbadenof]

a question... we have 24 waterfarms going, want to add more air.. if we get the eco+ comm7, and get a few manifolds, to make 24outlets, and run an airline into the bottom of each bucket will this work... ie will it supply enough extra air

and if it does supply suff air, do we put an airstone on the bottom, or can we just leave the airline dangle-ing at the bottom in the water/nute mixture..

thanks

 

[olddirtybastard]

DWC to me means simplicity. you will not see enough of an increase in Dissolved oxygen by adding complexity, not worth it. recirculating is the best, because a lot of the dissolved oxygen is concentrated at the top portion of the water closest to the surface.

best to have your two "tubs" connected by at least a 1 inch pipe at the bottom, then have a 1/2" pump circulating water from the bottom of one container to the top of the other 24/7, creating a waterfall. good circulation keeps dissolved oxygen as well as nutrient mixture uniform throughout. i been doin recirc. dwc for years now.

water temps vary for me between 60 in the winter 78 in the summer. no noticable difference in growth either way, plenty of DO and beneficial bacteria to keep the anaerobes in check.

keep it simple mofo's!

 

[cravin morehead]

i've always wondered if when using a powerhead or some other type of h2o pump in the res, if the magnetics of the electric motors would tend to pull out the iron in your nute mix. i could imagine that this could be possible. i run a dwc with a chiller. i use a h20 pump in-line (not submerged in the res). solution is pulled from one corner of the res, pumped through the chiller, and returned through the top of my res through a sprinkler head mounted upside down in the lid of the res. i have in the past, put a small fountain pump in the res to splash nutes around and add droplets of nutes hitting the roots. i also keep my nute level about 6" below the net cup bottoms. i've had some unknown probs with my grows lately (last 3 or so runs), i have not been able to figure out. some pics and info could be found in the nutes section, under h&g... lets chat, or in my albums under 'my budz', the cali 3 pics are good examples....
sorry for interrupting, but i thought the magnetics thing was a valid question that might help me figure out my prob or help someone else here...

thanks
cm

 

[thinkin]

H2O2

H2O2

not to hijack
Hydrogen Peroxide and its dangers

Most of the warnings focus on corrosive effects of high concentrations of H2O2. (rapid release of Oxygen) No mention of any toxins. I found very few places mentioning any toxins in H2O2 solution. Reading between the lines, Seems non-food grade type may contain toxins used to stablize the H2O2. But no one actually says it. UG.. (I looked everywhere)

"The solution mostly sold in pharmacies for external use, is not suitable."


My take:
Keep dosage low, use food safe grade, and enjoy the Benies!

Sourced links/info from wikipedia
used FDA,OSHA,consumerreports,greenplant

my brain hurts.