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Invisiblethedrake
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flooming vs air stones in dwc
    #773605 - 03/25/15 04:29 PM (1 year, 8 months ago)

I've been reading around on the best way to dissolve oxygen into water and it seems that flooming is superior to air stones. flooming is simply putting a water pump at the bottom of your reservoir pointing towards the surface. it should create a swell or a slight hump of moving water at the surface. you do not want a geyser. you could also use an air pump without an air stone to get a flooming effect but a water pump moves a lot more water.

most of the information that's out there on flooming comes from the koi pond community but there are a couple cannabis forums with threads too.
from what I've read so far flooming is the way to go.
you get more dissolved oxygen, no air stones to replace/clean, and there is no air stones to potentially harbor harmful bacteria.

i don't have any experience with either flooming or air stones other than the few seedlings i have growing right now.
i was wondering if any of you guys have tried both and what works best for you? or which way you think would work the best?


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InvisibleMagashM
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Re: flooming vs air stones in dwc [Re: thedrake]
    #773755 - 03/26/15 05:03 PM (1 year, 8 months ago)

Youre leaving out the other side of the dissolved oxygen story. D.O. may be higher with flooming but you have NO atmospheric oxygen present. Even though more oxygen is dissolved in the water, less is actually present. (or that's what I was able to dig up anyway)

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Invisiblethedrake
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Re: flooming vs air stones in dwc [Re: Magash]
    #773772 - 03/26/15 06:18 PM (1 year, 8 months ago)

im not fully understanding what your saying.

atmospheric oxygen=oxygen in the air?

are you saying that there isn't any atmospheric oxygen at the surface because most reservoirs don't have constant fresh air exchange,so flooming will be less effective than air stones?


Edited by thedrake (03/26/15 06:19 PM)


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Invisiblethedrake
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Re: flooming vs air stones in dwc [Re: thedrake]
    #774601 - 03/31/15 07:05 PM (1 year, 8 months ago)
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heres a pdf chart that was posted on icmag forums by user Sgt.Stedenko
heres the thread https://www.icmag.com/ic/showthread.php?t=206119&page=4
he compared airstone vs open tube vs hydrofarm flexible diffuser vs 27% h202

there doesn't seem to be a real significant differences with the airstone, open tube, or diffuser. other than the open tube having 1-2% higher oxygen saturation. I wonder if 1%-2% higher oxygen sat. levels would have a noticeable impact on the plants?

  the h202 did have 20% higher saturation levels than all of them but dissipated after a few hours.
I know this isn't a smoking gun on whats better just thought it was interesting.
any body here use h202 to boost their oxygen levels?


Edited by thedrake (03/31/15 07:10 PM)


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