| 
 Bob, 
The bubbles you described are too large.  Think 20 
microns in size.  Look at the aerob-a-jet.com web site.  Those ponds 
are a lot bigger than any compost tea brewer, yet aerobic bacteria do just fine 
in those sewage ponds for as long as they have food.  Those devices 
put micro bubbles into suspension in the water.  That technology has 
been around for a long time and is more than adequate to keep oxygen available 
over the long haul.   
As I said, a venturi that produces 20 micron size bubbles is 
also available and coupled with a water pump that doesn't beat up the fungi and 
bacteria might just solve the problem of having enough air present so the tea 
never runs out of disolved oxygen.  
And it could solve the situation of running out of oxygen 
after the tea is brewed and before it is applied... very simple.. mix the tea 
with water that is already saturated with the micro bubbles.  You wouldn't 
even have to aerate the liquid after that because the micro bubbles will sustain 
everything untill the tea is applied.  I'm not trying to work out every 
engineering detail on this list, but this technology of generating micro bubbles 
appears that it could solve the DO needs of CT once and for all.  I am 
bringing this up because most of the people on the list have never heard of this 
sort of technology before.  I think the "how to do" is just an 
engineering issue that could be solved and not end up having to be an expensive 
solution.  Micro bubbles of 20 microns stay in solution for a 
long time and their production could very well solve all the CT 
/ DO problems.   
Heaters have been around in the aquarium industry for a lot of 
years.  I bet they have a solution that would fit.  In line 
heater?  Maybe, maybe not... it was just a suggestion.  Take a look at 
the products in the aquarium industry for heating water.  They have already 
solved this particular problem.  It's a matter of matching up products 
with tank size etc.  We are basically saying similar things, 
Bob.  There's lots of ways to solve these problems and get the costs down 
so a lot of people can buy your product as a result.   
Elaine said a while back that a couple of people have 
identified water pumps that will work with compost tea.  It appears that 
they do not want to share that info on this list.  Why not?  I think 
the reasons are called "fear" and "money". 
--Thomas Giannou 
----- Original Message -----  
 
 To unsubscribe from this group, send an email to: compost_tea-unsubscribe@yahoogroups.com Your use of Yahoo! Groups is subject to the Yahoo! Terms of Service.  |