Aquaponics Digest - Mon 09/06/99
Message 1: Re: A few more questions
from Adriana Gutierrez & Dennis LaGatta
Message 2: RE: A few more questions
from "Ronald W. Brooks"
Message 3: Greenhouse cooling
from MUDDTOO
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Subject: Re: A few more questions
From: Adriana Gutierrez & Dennis LaGatta
Date: Mon, 06 Sep 1999 04:13:30 -0400
> Though Mike Sipe at Cherrysnapper has recently come up with
> a new hybrid that is supposed to grow out to harvest in 1/2 the time.
Ron,
If I recall, previous reports had indicated that Mike's growth claims
had not been replicated in the real world. There was also concern about
lots of genetic deformities in subsequent generations. Does anybody
have any more recent experience?
Adriana
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Subject: RE: A few more questions
From: "Ronald W. Brooks"
Date: Mon, 6 Sep 1999 09:43:41 -0400
Adriana
What I was thinking of was a recent ( 2 weeks ago ) press blurb he released
about a new hybrid. I too am slightly skeptical , that is why I said I have
not tried these Hybrids. Plus I think his breeding pairs are just way to
expensive. I will stick to my Aurea X Nile cross :~)
Ron
The One Who Walks Two Paths
ICQ 4427137
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| Message 3 |
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Subject: Greenhouse cooling
From: MUDDTOO
Date: Mon, 6 Sep 1999 20:15:27 EDT
Hello Adriana,
I've been reading your post discussing cooling your greenhouses. I spent
some time in the midwest where it's also hot and humid. There the most
efficient way to cool and heat is with a heat pump system. Plastic hose is
buried deep in the yard where the earth maintains a constant 55 deg F or so.
A fluid is pumped through the underground hoses and the fluid comes out cold.
In the winter when it's 30 deg F outside the system only has to heat the
fluid from the ground temperature of 55 to 75 instead of from 30 to 75. You
can also easily see the advantage in the summer.
I've seen simple setups where the plastic lines were instead laided into a
deep pond and one where the lines were coiled and dropped into a cold water
well. Both types worked well. How big and cold is your well? Is it stream
fed? If it is stream fed or comes from a very big source then you could save
on all the hose and just pump the cold water up, run it through a bank of
clean car type radiators (with fans behind them), then through the bottom of
your grow beds trying to extract the remaining coolness out of the water and
finally back into the well. The reference to a car type radiator is only for
the style of cooling fins you'd want to use, ones with lots of surface area
to extract the cold. I wouldn't recommend anyone drink anything coming out
of a real auto radiator.
Some where I have a program that could help calculate the amount of plastic
pipe or volume of water needed to achieve a desired output. Holler if you
need anything.
Joel
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