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[compost_tea] Re: Alaska compost tea



Thanks for your comments Elaine.

Don't you need around 8% dissolved oxygen to make this thing
really crank.

By pumping air like most of these units do, I don't think you can 
reach those levels unless you pumped in pure oxygen, or had an 
impeller motor to draw up the solution and spray it horizontally in 
the air to create a mist that descends gently back to the agitated 
water, facilitating gas exchange.

Any thoughts or experience with this?


--- In compost_tea@yahoogroups.com, soilfoodweb@a... wrote:
> The Alaska Giant is a good little aerator, but you have to be 
careful not to 
> add more food resources than come with the kit.  The tubing around 
the bottom 
> is easily overwhelmed by too much microbial growth.  Take care.
> 
> You have to either replace the soaker hose every few tea runs, 
because it 
> gets plugged up with microbial growth, or you have to soak the hose 
in bleach 
> until the dark color stops coming out.  
> 
> It can give very good numbers.  
> 
> Elaine Ingham
> President, Soil Foodweb Inc.
> www.soilfoodweb.com


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