[compost_tea] oxygen readings
Hi to everyone and Elaine if you are listening
I have been brewing compost tea for a couple of mths now down here in New
Zealand. Since attending your seminars and the 3 day workshop Elaine held
in Cambridge. I am using the MEND Brewstar Microbe Booster from Nuti-Tech
Solutions in Australia which uses a pump / heater / aerator through a
venturi system. I am brewing 1000 Lts at one time.
I have been achieving good oxygen readings during my brewing cycle but once
I stop aeration the oxygen readings drop off within minutes. At end of
brewing I have a reading of 7.4 ppm within 5 minutes of turning off the
aeration it was down to 3.5 another 5 minutes and it was down to 2.5. I the=
n
turned the aeration back on and within 5 minutes it was back to 6.6. My
question is what is happening to the microbes turning this time, and is thi=
s
a normal reaction. I canıt imagine that it is going anaerobic in such a
short time frame.
I am now leaving the aeration running while drawing tea from the brewer
into the spray tank, Iım using 4 to 6 spray tanks depending on spraying
pressure to empty the brewer over a period of 6 hours.
I also took a reading from the spray tank prior to spraying and the
reading was down to 2.5 ppm
Also has anyone done any work with energising the water before brewing. I
have been energizing the water for 60 minutes by creating a vortex and
changing to rotation clockwise to anti-clockwise very 15 minutes. Once
energized then I start brewing. We have found by doing this we can reduce
the brewing time. However until the New Zealand SFI Lab is up and runnin=
g
in early March we wonıt know what the advantages are.
James Croskery
Gracewood Organics
KatiKati
New Zealand
Received on Sun Feb 23 2003 - 00:21:16 EST
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