RE: [compost_tea] Pumps and Aerob-a-jet

From: Jody2 - Harris Ranch <jody2_at_harrisranch.net>
Date: Mon, 12 May 2003 13:30:06 -0700

Far $258 Goto:
http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=NA=
VIG
ATION
<http://www.homedepot.com/prel80/HDUS/EN_US/diy_main/pg_diy.jsp?CNTTYPE=N=
AVI
GATION&CNTKEY=market%2fpg_zip_code.jsp&BV_SessionID=_at__at_@@1933544714.1052=
77109
1_at__at_@@&BV_EngineID=ccchadcifjhfffdcgelceffdfgidgjn.0&search_text=air%20c=
ompre
ssor&DRC=4>
&CNTKEY=market%2fpg_zip_code.jsp&BV_SessionID=_at__at_@@1933544714.1052771091=
_at__at_@@&
BV_EngineID=ccchadcifjhfffdcgelceffdfgidgjn.0&search_text=air%20compres=
sor&D
RC=4

 

That Air Compressor puts out 7.6 CFM at 40 PSI or 6.5 CFM at 90 psi.

 

If that isn't enough, try a bigger compressor.


 



 

Jody

 

-----Original Message-----
From: J Peter Young [mailto:peter_at_bennettvalleyvineyards.com]
Sent: Monday, May 12, 2003 1:05 PM
To: compost_tea_at_yahoogroups.com
Subject: RE: [compost_tea] Pumps and Aerob-a-jet

 

So basically it sounds like nobody knows anything concrete about this issue=
.
I'll keep with my soaker hose and stanard air pumps. So back to a previous
questions. Anyone no a good supplier for pumps that put out 9+ CFM. One
person here recommended Gast, but they are over $1,000. Hoping to find
something cheaper. Are conventional compress capable of the kind of duty
cycles (on for 10 hours straight) that compost tea requires?

 

Peter

-----Original Message-----
From: Jason Austin [mailto:jason.austin_at_shaw.ca]
Sent: Monday, May 12, 2003 12:16 PM
To: compost_tea_at_yahoogroups.com
Subject: Re: [compost_tea] Pumps and Aerob-a-jet

Thomas Giannou wrote:



Hi Peter,

 

I don't remember seeing anything from Elaine on this topic. But who knows,
she sometimes replies but doesn't copy text from the message.

Sometimes ? <grin>

Here is Elaines's message from May 6th under the heading of Simple CT maker



Compost tea brewers are a bit different from fish tanks. Fish don't get
growing quite as fast as bacteria. When you feed bacteria well, they can
use up all the oxygen in any amount of water within minutes, and therefore
the aeration rate needs to be high enough to offset bacterial and fungal
growth.

The fine bubbles are not the preferable condition. The fine bubbles are
really hard on the fungi and seem to break them up and shatter them.

If you suspend fine bubbles in the water, by over-aerating, you end up with
problems. Too much air, and not enough water (supersaturation?), and the
organisms will be killed because the environment become too oxidizing.

Cute, huh? Not too much, not too little..... Goldilocks strikes again.

We need some additional testing on the fine bubble versus coarse bubble
situation. The fine bubble work we've done suggests that fine bubbles are
quite detrimental. The bigger bubbles seem to do a better job of extractin=
g
hte organisms from the tea, and keeping things as aerated as possible.

Always something more to know. So, what is the optimal aeration rate?
Depends on how much food you add, the compost you use, the temperature of
the water.

Check the www.magicsoil.com web site. Some interesting insights there abou=
t
aeration.

Elaine Ingham
President, Soil Foodweb Inc.
www.soilfoodweb.com

Jason


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Received on Mon May 12 2003 - 16:46:33 EDT

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