Re: [compost_tea] Re: Air Required was: Air pump selection & 5 gal brewer

From: Stuart Baxter <stu.baxter_at_virgin.net>
Date: Mon, 6 Oct 2003 04:34:22 +0100

Dave

That's why we pay people to design machines. Pay! Oh, is that the way it wo=
rks? :o}

I'm trying to design my own for two good reasons: -
There aren't any UK machines.................yet.<I can dream>.
Any imports are liable for 17.5% tax, + maybe a duty <my wallet hurts>.

So the incentive is there but my knowledge base isn't. Lots to learn, and s=
ort the wheat from the chaff.

Be well

Stuart

  ----- Original Message -----
  From: David Loring
  To: compost_tea_at_yahoogroups.com
  Sent: Saturday, October 04, 2003 3:32 PM
  Subject: Re: [compost_tea] Re: Air Required was: Air pump selection & 5 g=
al brewer


  Stuart - That's why we pay people to design machines. Put all the info o=
n one page, read it over, then go buy a pump. It'll probably work fine.

  Dave
    ----- Original Message -----
    From: Stuart Baxter
    To: compost_tea_at_yahoogroups.com
    Sent: Friday, October 03, 2003 11:30 AM
    Subject: Re: [compost_tea] Re: Air Required was: Air pump selection & 5=
 gal brewer


    Can we keep this thread going........I'm thoroughly confused about oxyg=
enation now!

    What with shear, simple aquarium air pumps vs. $500+ 1/3 HP blowers, an=
d big bubbles vs. small bubbles, and shallow tanks vs. deep ones.......arrg=
ggh. What do I need? Does anyone have any definitive answers that will stan=
d up to scrutiny or are these opinions? (bearing also in mind that air = =
21% oxygen, 70+% nitrogen......)

    # I'm forever blowing bubbles, pretty bubbles in the air.............# =
     :o}

    Stuart
      ----- Original Message -----
      From: johnz4wi
      To: compost_tea_at_yahoogroups.com
      Sent: Friday, October 03, 2003 2:41 PM
      Subject: [compost_tea] Re: Air Required was: Air pump selection & 5 g=
al brewer



      There are different kinds of diffusers. www.aquaticeco.com has a
      good selection. From coarse to ultra-fine bubble size. I got the
      medium bubble stones for my home made brewer.

      John


      --- In compost_tea_at_yahoogroups.com, soilfoodweb_at_a... wrote:
> As bubbles rise through the liquid, we see fungal strands caught in=
 
      the
> interface between the small bubbles rising at different rates
      through the through
> the liquid.
> A factor of surface tension? But as the small bubbles move, the
      fungal
> strands caught in the interplay of the tiny bubbles are shattered
      and ripped apart.
>
>
> I think this is critical when some micrometer size bubbles are
      suspended
> basically un-moving in the water, while slightly larger bubbles
      move past the
> smaller size bubbles.
>
> I report what I observe. Not being a physicist, I am not certain
      what
> physical phenomenon this represents, but fungal strands don't do
      well in liquids
> with very small diameter bubbles. Another reason that carbonation=
 
      works so well
> to suppress fungal growth?
>
> Elaine Ingham
> President, Soil Foodweb Inc.
> www.soilfoodweb.com
> SFI Oregon, USA
> SFI Australia
> SFI New York
> SFI Europe
> SFI New Zealand
>
> "Hope is not a feeling. It is not the belief that things will turn=
 
      out well,
> but the conviction that what we are doing makes sense, no matter
      how things
> turn out." -- Vaclav Havel, former President of the Czech
      Republic




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Received on Mon Oct 06 2003 - 00:29:06 EDT

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