Re: [compost_tea] air bubble size

From: RiverValley <madhava_at_fidalgo.net>
Date: Fri, 24 Jan 2003 10:27:43 -0800

Thanks for the reply Bob.

I don't enjoy develpoing a brewer. I'm a small market farmer and started m=
aking this brewer for myself when the only small brewers on the market were=
 the soil soup and the GSI, before the KIS, your brewer and others were ava=
ilable. I figure since I've got money invested in some equipment (tank, ai=
r pumps, hoses and diffusers) I should try to make it work.

Your brewer has been described as having larger bubbles. Do you have any i=
dea how the bubbles coming out of 1/4" hose would compare to your bubble si=
ze?

Would it be possible to use my tank and air pumps with your air diffusion s=
et-up?

thanks,
daniel
  ----- Original Message -----
  From: Robert Norsen
  To: compost_tea_at_yahoogroups.com
  Sent: Friday, January 24, 2003 10:11 AM
  Subject: Re: [compost_tea] air bubble size


  A few days ago my message was that some enjoy developing a bewer, some li=
ke to work at gardening. Developing and testing a brewer is a several yea=
rs challenge.

  2 CFM for 20 gallons? The Bob-o-lator uses less than 1 cfm for 250 gallo=
ns and maintains very safe D O2 .

   RiverValley <madhava_at_fidalgo.net> wrote:

    This is intersting info. I'm working on a brewer that I started making=
 last year. The container is 12" round by 4' high (it holds about 20 gallo=
ns) and uses 5 tetra tech deep water pumps which gives me a total of 2 cfms=
 without any diffusers attached. The air hoses are 1/4 inch diameter. I t=
hink it would simplify my design to not have to use air diffusers and just =
let the air come out of the hoses.

    Anyone ideas if this would provide enough air without diffusers.

    thanks,
    daniel

    ----- Original Message -----
      From: Jeff Lowenfels
      To: compost_tea_at_yahoogroups.com
      Sent: Thursday, January 23, 2003 7:57 PM
      Subject: [compost_tea] air bubble size


      <Please be aware that fine air bubbles chew up the organisms in the t=
ea>

      Wow, that seems to be "new" info--I seem to remember lots of discussi=
on of size of bubble vs. surface area, but this statement explains the lar=
ger bubble size in the Kis Machine and the Bob-0-Lator.

      Will you elaborate a bit when you get a chance. What is too small? I =
know the bubbles from an aquarium stone make tested adequate tea. What abou=
t diffuser bubbles? Too small? Or is the real answer: get a O meter and ma=
ke sure you are 6 mg O2 per L or better?

      thanks,
      jeff






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Received on Fri Jan 24 2003 - 13:45:56 EST

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