Aquaponics Digest - Thu 10/21/99




Message   1: Illegal sand and gravel

             from Adriana Gutierrez & Dennis LaGatta

Message   2: treehouses

             from ranchos@sol.racsa.co.cr

Message   3: DO NOT SEND ATTACHMENTS TO THE AQUAPONICS MAIL GROUP

             from S & S Aqua Farm 

Message   4: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

             from S & S Aqua Farm 

Message   5: Re: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

             from "Wendy Nagurny" 

Message   6: Re: Inflation Fans, In or Out?

             from "Barry Thomas" 

Message   7: RE: Wasabi and watercress

             from "William Brown" 

Message   8: treehouse workshop

             from ranchos@sol.racsa.co.cr

Message   9: Re: Inflation Fans, In or Out?

             from Ronald Polka 

Message  10: Re: [Fwd: [jam-watah] Re: Media Hunt]

             from "TGTX" 

Message  11: Re: Inflation Fans, In or Out?

             from Sunpeer

Message  12: Re: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

             from atkindw@cwjamaica.com (david w atkinson)

Message  13: Garden Alert!

             from Dave Miller 

Message  14: Re: Wasabi and watercress

             from 

Message  15: Re: [Fwd: [jam-watah] Re: Media Hunt]

             from dreadlox@cwjamaica.com (michael kent barnett)

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| Message 1                                                           |

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Subject: Illegal sand and gravel

From:    Adriana Gutierrez & Dennis LaGatta 

Date:    Thu, 21 Oct 1999 05:06:10 -0400

I would think that maybe taking sand from public beaches or somebody's

private property could be considered illegal.  When I was growing up in

Colombia my father had a dredging operation to extract sand and gravel

from a local river.  This was used for construction and also for making

concrete blocks, posts, etc.  I suspect you can go to a construction

supply place and /or concrete fabricator and buy legal sand and gravel. 

Now if you're looking for "legal" and "free" that's another story...

Adriana 

PS - Now a totally off-topic plug for a wacky product for those of us

(who me?) with a warped sense of humor.

https://secure.pageplanet.com/healthmedia/infect.html has neckties,

scarves and boxer shorts adorned with patterns of various serious

contagious disease organisms such as ebola, malaria, staph, the plague,

AIDS, chlamydia, etc.  A fun gift for just the right person.

> Just curious.  Why would sand and gravel be illegal and how could one

possibly abuse them?

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| Message 2                                                           |

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Subject: treehouses

From:    ranchos@sol.racsa.co.cr

Date:    Thu, 21 Oct 1999 04:37:19 -0500

Hi everybody:

This has nothing to do with Aquaponics, but I thought it may interest some

of you on the list.

If the document does not open for you, please contact me and

I'll send you directly the information on the body of the email.

Thanks,

Jose

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| Message 3                                                           |

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Subject: DO NOT SEND ATTACHMENTS TO THE AQUAPONICS MAIL GROUP

From:    S & S Aqua Farm 

Date:    Thu, 21 Oct 1999 06:13:12 -0500

Following is a section of the welcome message you should have received when

you subscribed to this group.  I will be happy to repost this welcome

message in its entirety for any who have deleted it.  For the second time in

three days the group has been subjected to an attachment that does/may

contain a virus (according to some screening software).  If you have a

question about what is approved to send to the group, please contact me

directly.  As a general rule, DO NOT SEND ATTACHMENTS TO THE AQUAPONICS MAIL

GROUP.    Paula

-----------------------------------------------

3) Sending ATTACHMENTS to the list.  Sending an attachment to everyone,

while you may think it contributes to the discussion, only bogs down the

server and costs many people time and frustration in downloading data that

they may be unable or unwilling to open anyway.  Attachments can contain

viruses, so many people make it a general policy not to open any attachment

from an unknown source.  So if you have an attachment you think it would be

worthwhile to share, please just post an announcement and email it

PRIVATELY to those who ask for it, e.g. "Hey, I've got a great .GIF of some

drawings of (whatever)!  Email me if you'd like a copy!"

Note also that many email programs these days send attachments without your

even being aware of it.  If you like to play with fancy formatting,

signatures, greeting cards, or sending HTML code along with your email, do

NOT do so when posting to this list!  Please make sure your mailer software

is configured to send text only.  Of course, if you do accidentally send

attachments, you'll be sure to get a chorus of hollering from list members,

and can contact your Internet provider for help if you don't know how to

stop the attachments.

------------------------------------

S&S Aqua Farm, 8386 County Road 8820, West Plains, MO 65775  417-256-5124

Web page  http://www.townsqr.com/snsaqua/

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| Message 4                                                           |

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Subject: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

From:    S & S Aqua Farm 

Date:    Thu, 21 Oct 1999 06:43:06 -0500

This warning from an NT virus scan:

>A virus was detected in an attachment in an e-mail message sent by you.    

>

>File:          FIRST ANNUAL COSTA RICA TREEHOUSE BUILDING WORKSHOP.doc

>Virus:         W97M_PSD 

and others have been received.

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| Message 5                                                           |

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Subject: Re: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

From:    "Wendy Nagurny" 

Date:    Thu, 21 Oct 1999 08:52:08 -0400

Oh, Crap!  I read this attachement before reading your message.  This stinks

worse than an anerobic digester.

Wendy

>This warning from an NT virus scan:

>

>>A virus was detected in an attachment in an e-mail message sent by you.

>>

>>File:  FIRST ANNUAL COSTA RICA TREEHOUSE BUILDING WORKSHOP.doc

>>Virus: W97M_PSD

>

>and others have been received.

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| Message 6                                                           |

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Subject: Re: Inflation Fans, In or Out?

From:    "Barry Thomas" 

Date:    Thu, 21 Oct 1999 15:37:20 +0100



> Your unique weather conditions of very high relative humidity

> may require experimentation to determine if an inside or outside

> air inlet is better, dependant upon what happens with moisture

> inside the envelope. Whatever you decide heating the envelope

> air is irrelevant in the overall greenhouse heat balance.

>

> Ron Polka

Hi Ron,

It was my understanding that (when the weather is cold) this type of GH

takes in air from outside to pressurize the envelope but exhausts it

_inside_ the GH - carrying a good(?) percentage of the heat that made it

through the inner skin back inside. You get an extra temp gradient along

the length of the envelope (assuming inlets/outlets at opposite ends)

but both ends roughly balance out and as long as you have good internal

air circulation, an internal gradient (along the GH) is avoided. Does

this sound right, wrong or doesn't make enough of a difference to worry

about anyway?

Barry

barrythomas@crosswinds.ne

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| Message 7                                                           |

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Subject: RE: Wasabi and watercress

From:    "William Brown" 

Date:    Thu, 21 Oct 1999 06:36:11 -1000

This is a multi-part message in MIME format.

------=_NextPart_000_0017_01BF1B8E.90C81180

Content-Type: text/plain;

        charset="iso-8859-1"

Content-Transfer-Encoding: 8bit

I too am on the search for sources of wasabi.  Searching is best done with

the name Wasabia japonica.  I have two to offer, others would be greatly

appreciated.

Seed

Wasabi Seed New Zealand Hydroponics

http://www2.wave.co.nz/~lesgrueb/hydropon/hydcat3.htm

Stems

http://www.batnet.com/rwc-seed/wasabi.html

WASABI PLANTS (Wasabia japonica)

----------------------------------------------------------------------------

----

Offered by Redwood City Seed Company, Box 361, Redwood City, Ca. 94064

Phone (650) 325-7333. This website Copyright  1998 and 1999 by Craig and

Sue Dremann., co-owners.

Anyone who loves sushi has tasted the green wasabi or Japanese horseradish,

the popular indigenous condiment from Japan, which is made by grating the

plant's finger-sized roots. Wasabi is becoming popular here in the United

States too, with prepared wasabi sold in tubes, canned, or as dried root

powder. We are offering the live plants for planting, and it has taken us 24

years of searching to be able to bring you these plant!

Plants are perennial fresh-water stream sand-bar and rock-bar plants. The

roots are easily grown in a plastic container with drain holes in the

bottom, filled with a mix of coarse sand-box sand, perlite, and 1-2"

diameter drain rock. Plants need to be kept at all times in FULL SHADE,

especially protected from the afternoon sun in summer or plants can wilt.

The sand-perlite-rock mix is best kept cool and moist, ideally around 60-70

degrees F. Plants may need to be watered once a day in summer to keep the

sand-rock mix moist but they do not like standing water around their roots.

Check at night for snails or slugs on leaves. We do not recommend using

snail poison, just hand-pick. DO NOT TRY TO GROW INDOORS, we have had 100%

failures from indoor attempts.

Plants need to be fertilized periodically; and if young leaves start

wrinkling, they need a shot of lime. We sell one year old plants, and will

need at least one more year's growth before roots can be harvested for

grating to make the condiment.

As plants grow, they will flower, make seeds and new seedlings will appear

in the pots with your mother plant. By the time you are ready to harvest the

original plant, you should have young seedlings taking its place.

PLANTS $35 postpaid, only shipped within the U.S.A.

William Brown mahiwai@cmpmail.com

  -----Original Message-----

  From: aquaponics

[mailto:aquaponics]On Behalf Of Jewel

  Sent: Wednesday, October 20, 1999 9:59 AM

  To: aquaponics mail group

  Subject: Wasabi and watercress

  Hi group!  2 questions:

  1) Does anyone know of sources for Wasabi?

  2)  - In choosing a variety of watercress to feed the Tilapia, does anyone

know if they only like regular watercress, or other varieties like

"broadleaved cress", or "Upland cress"?

  tanks a lot

  Jewel

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| Message 8                                                           |

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Subject: treehouse workshop

From:    ranchos@sol.racsa.co.cr

Date:    Thu, 21 Oct 1999 13:41:09 -0500

Fellow listers:

I apologize profusely for the inadvertent virus.  My Norton program did not

pick it up, still doesn't. 

I also apologize for sending an unwanted/unrequested attachment, it will

not happen again.

Jose

Thought for the day:

I don't mind washing the cat, but it takes me hours to get 

the hair off my tongue

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| Message 9                                                           |

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Subject: Re: Inflation Fans, In or Out?

From:    Ronald Polka 

Date:    Thu, 21 Oct 1999 15:38:34 -0600

At 03:37 PM 10/21/1999 +0100, you wrote:

>

>It was my understanding that (when the weather is cold) this type of GH

>takes in air from outside to pressurize the envelope but exhausts it

>_inside_ the GH - carrying a good(?) percentage of the heat that made it

>through the inner skin back inside. You get an extra temp gradient along

>the length of the envelope (assuming inlets/outlets at opposite ends)

>but both ends roughly balance out and as long as you have good internal

>air circulation, an internal gradient (along the GH) is avoided. Does

>this sound right, wrong or doesn't make enough of a difference to worry

>about anyway?

>

>Barry

>barrythomas@crosswinds.net

>

>

Barry

        When I install double poly roof glazing I always try to do it in such a

manner that the inflation fan moves a minimal amount of air. We always

install the poly-loc glazing bars so they fit as tightly as possible to

create an envelope that doesn't leak. Of course in practice this never

happens. Air always escapes around the poly-loc at a small rate. Sometimes

small holes are inadvertently punched thru the glazing during installation,

larger ones are always patched. My installations are usually on 30 by 100

foot gutter connected bays so sometimes holes do appear even when care is

exercised. I never intentionally provide an outlet for the inflation blower

because I prefer having an envelope that is relatively firm. I believe that

here in southern New Mexico an envelope that is inflated to a higher

pressure is preferable. During periods of high winds, which happen

regularly, the bays that are inflated at a higher pressure seem to absorb

wind gusts better than the looser envelopes.

        In most of our house we minimize interior air temp gradients by using

horizontal air flow fans that automatically operate whenever the exhaust

fans are turned off. This eliminates cold spots and reduces the incidence

of fungal infections. 

        But to get back to the issue of heat lets look at an example. A typical

inflation blower is one such as a Dayton model 4C440. I have one of these

in each 30 x 100 foot bay. This blower operates in one house that I

measured at 0.14 inches static pressure. This blower puts out 60 CFM at

free air conditions and deadheads at 0.60 inches static pressure. At the

operating pressure of 0.14 inches static pressure the output is about 56

CFM. If one doesn't beat this to death mathematically, a simplified

equation for the heat loss would be as follows. 

Heat loss to outside = 56 ft3/min * 0.075 lb/ft3 * 0.243 Btu/lb deg F *

(70-10)/2 deg F * 60 min/hr = 1,837 Btu/hr

        The 30 deg delta T is rather arbitrary, I just assumed an interior temp of

70 deg and an exterior temp of 10 deg. The reason I divided it in two is to

assume that the envelope air temp may equilibrate at the midpoint between

the inside and outside temps. This also assumes that all blower air escapes

to the environment which is not necessarily the case. 

        To put this number in perspective I looked at my previously calculated

heat loss coefficient for the greenhouse. It is about 173,000 Btu/hr at

this outside temp. The roof heat loss due to outside blower inlet air

amounts to just over 1 % of the total. The size of this loss becomes

insignificant relative to other things such as infiltration of cold outside

air which is nearly always the largest single component in the greenhouse

heat balance equation. This is directly related to construction practices

and quality of weather stripping and sealing. 

Ron Polka

Southwest Technology Development Institute

New Mexico State University

Box 30001, Dept 3SOL

Las Cruces, NM  88003

rpolka@nmsu.edu

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| Message 10                                                          |

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Subject: Re: [Fwd: [jam-watah] Re: Media Hunt]

From:    "TGTX" 

Date:    Thu, 21 Oct 1999 18:55:37 -0500

> Ted

> Just curious.  Why would sand and gravel be illegal and how could one

possibly abuse them?

> thx,

> jb

Yes indeed, jb.

Exactly.

Thank you.

Ted.

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| Message 11                                                          |

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Subject: Re: Inflation Fans, In or Out?

From:    Sunpeer

Date:    Thu, 21 Oct 1999 22:20:55 EDT

thank you..I have been wrestling with this issue for a while too!

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| Message 12                                                          |

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Subject: Re: InterScan NT Alert - DO NOT OPEN THE TREEHOUSE ATTACHMENT

From:    atkindw@cwjamaica.com (david w atkinson)

Date:    Thu, 21 Oct 1999 21:26:59 -0700

Thanks for the warning.  I will delete the file that was attached without

opening same.

David A.

At 06:43 AM 10/21/1999 -0500, you wrote:

>This warning from an NT virus scan:

>

>>A virus was detected in an attachment in an e-mail message sent by you.    

>>

>>File:         FIRST ANNUAL COSTA RICA TREEHOUSE BUILDING WORKSHOP.doc

>>Virus:        W97M_PSD 

>

>and others have been received.

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| Message 13                                                          |

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Subject: Garden Alert!

From:    Dave Miller 

Date:    Thu, 21 Oct 1999 23:45:13 -0400

This one is for you Ted! Thanks to all the others for the poison

ivy/jewelweed help.

_______________________________________





A remodeler, drummer, Kindred Spirit...

Put a pebble in your pocket and a penny in your shoe!

Dave

====

Vive le gnome libre!

We have a new, and very serious threat to the well-being of homeowners

around the globe.

According to a short report issued by the Agence France-Presse (which

was reprinted in several major newspapers, including Canada's National

Post), a new faction of society is resorting to spectacular tactics like

mysterious midnight kidnapping raids to draw attention to their call for

freedom.

They call themselves - I swear - The Garden Gnome Liberation Front.  The

Front's aim, apparently, is to free gnomes from domestic captivity and

return them to their natural woodland habitats.  Earlier this month,

some 143 garden gnomes were discovered lined up in front of the city

hall in Sarrebourg in eastern France.  Previously, another 73 had been

found in a schoolyard.

There is no doubt that the gnome's plight is a desperate one.  Captured

by the thousands every year by slave rings operating under code names

like "Wal-Mart" and "Target," the poor little critters are torn away

from their homes and families and placed on shelves in garden centers

throughout the world - ironically, right next to products like

"RoundUp."

After weeks of torture (things like flourescent lighting and mall music)

designed to break their spirits, they are sold to homeowners who force

them to stand motionless, for seasons at a time, in their gardens.  An

ignominious fate if there ever was one.

No wonder then, that 11 of them were found hanged last year, in what the

French press called a "collective suicide."  The accompanying note

explained that they were "leaving this cruel world... to join the temple

of oppressed gnomes." (The temple of course, being a central tenet of

their religious faith, Gnosticism.)

Why should homeowners be concerned?  Because if you've ever studied the

rise of , oppressed accessories throughout history, you'll know it's

only a matter of time before the gnomes start using more aggressive

tactics.  Indeed, there's already talk of setting up a freedom fighters

world headquarters in Nome, Alaska. Improvements in cellular technology

will soon create units small enough for these creatures to improve their

communications networks - enabling them, in effect, to phone gnome.  And

it worries me that the GGLF started in France: a country known for

things like revolutions, Bastille storming, and guillotines.

Frankly, I'm beginning to wonder if I'm not already a victim of a quiet

campaign of horticultural terror.  Several flowers in my garden have

died mysteriously this year, and at least one of my stepping stones has

gone missing.  (I'm just waiting for it to turn up as a little bag of

pulverized gravel accompanied by a demand note).

Several new weeds have been "introduced" into my lily patch.  A friend

of mine living on a ranch in the prairies has reported that he stepped

on a rake twice this year and swears that he wasn't responsible for

leaving it out on the lawn.

This means there's at least one activist gnome on the range.  Maybe even

a whole group of radical gnomesteaders.

But it's the widespread effects of a potential gnome uprising that are

truly frightening.  If they succeed, they set the stage for further

upheaval. We'll have pink flamingos, stone toads, various half-naked

Greek statuettes and even garden gargoyles clamoring to join the gnome

front.  Entire bands of garden creatures wandering loose in the

countryside, causing trouble.  Gnomads, if you will.

After that, who knows?  Stuffed animals everywhere might be inspired to

crawl out from under the bed to freedom, with a battle cry of "there's

no place like Gnome!" on their faux-fur lips.  Heck, there are enough

captive Beanie Babies alone to start up entire regiments.  And perhaps

the Royal Doulton figurines will start thinking of restoring the

monarchy again.

So take this as a warning my friends: gnomes may be cute, but they are

also revolting.  Hide the hedge clippers and lock the implement shed at

night.  Report any suspicious movements to the proper authorities.

Be ever vigilant, because you can bet they're not going to stop until

they're gnome free.

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| Message 14                                                          |

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Subject: Re: Wasabi and watercress

From:    

Date:    Fri, 22 Oct 1999 13:55:10 +0930 (CST)

Hi group

just a question. Do aquotic plants, such as watercress, use ammonium

rather than nitrates.  I heard this is a biology lecture the other day.

Is it true?  If it is can you use a bed of watercress or large algue

instead of a biofilter.

Bye Andrew 

On Wed, 20 Oct 1999, Jewel wrote:

> Hi group!  2 questions:

> 1) Does anyone know of sources for Wasabi?

> 2)  - In choosing a variety of watercress to feed the Tilapia, does anyone

know if they only like regular watercress, or other varieties like

"broadleaved cress", or "Upland cress"?

> 

> tanks a lot

> Jewel

> 

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| Message 15                                                          |

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Subject: Re: [Fwd: [jam-watah] Re: Media Hunt]

From:    dreadlox@cwjamaica.com (michael kent barnett)

Date:    Thu, 21 Oct 1999 00:47:45 +0100

JB, mining in an area where dredging as Adrianna said is not allowed

causes serious erosion, landslaides and slippage of buidings near rivers

into the river valleys. Sand from say the mouth of rivers, etc delta and

so on can cause the backup and flooding of low lying areas, hence mining

permits are granted.

Removal is good in this case.

Abuse in Jamaica is like this...Im poor... cant be bothered re the

Babylon system, permits and all so out come the dredge, pay a guy 500$

to bring a few Caterpillar buckets of sand from a fording home for me,

and I sift at leisure, build my low cost house.

Next Hurricane season, we can tell. I have seen beautiful waterfalls of

my childhood been reduced to gurgling green algae streams by removing

aggreates from this river lower downstream...In my lifewtime then, I

have already seen the destruction of great recreational areas on the

river, how much so will my unborn sons and daughters say?

Mike..

TGTX wrote:

> 

> > Ted

> > Just curious.  Why would sand and gravel be illegal and how could one

> possibly abuse them?

> > thx,

> > jb

> 

> Yes indeed, jb.

> Exactly.

> Thank you.

> 

> Ted.



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