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aquamad
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PostPosted: May 9th, '07, 06:16 
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Yea, they are a food grade plastic Mc :rr:

We got these from the sewage treatment folks... The fire brigrade used to use blue barrels for their high density low expansion foam before going over to IBC's... perhaps other members can suggest other places that might sell/use them...
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monya
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PostPosted: May 9th, '07, 06:36 
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geez am, you would wanna give them a really good clean out. Nova lost all the fish he had due to surfactants in the water from a fire engine tanker. I am assuming that those fire retarding foams contain surfactants too....
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MCPHRO
PostPosted: May 9th, '07, 18:22 
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im going to hunt for them high and low....
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aquamad
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PostPosted: May 9th, '07, 20:01 
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geez am, you would wanna give them a really good clean out

You do need to scrub them real well - I have lost no fish as of yet and we have 45 barra in the one from the airport guys, and the other is my water aging tank...
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aquamad
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PostPosted: May 13th, '07, 20:44 
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Decided to use the student's system to run and experiment or 2...
I got the first bed set up as an auto siphoning bed with a continuous flow pump...
In the bed I have filled it with rived washed stone half way up, then filled one half the rest of the way with fine stone, and the rest with more river washed stones... (refer to pics)
I have planted the entire side with the river washed stones with shallots (taken from the stainless steel gutter, which has been done away with).
I have planted the other side filled with finer stone with a very young tomato seedling, and basil seedlings...
Now, the experimental side of things:
I have planted equal amounts of tomato, lettuce, rocket, nasturtium, cucumber and broccoli seeds into both halves of the bed...... and sprinkled equal amounts of the seed over the surface of each side of the bed with the same seeds... What I want to see is not only how many of each seed germinate, but what are the survival rates too.


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auto end.jpg
auto end.jpg [ 71.09 KiB | Viewed 2704 times ]
rock end.jpg
rock end.jpg [ 76.24 KiB | Viewed 2709 times ]
whole bed.jpg
whole bed.jpg [ 74.55 KiB | Viewed 2704 times ]
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RupertofOZ
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PostPosted: May 13th, '07, 21:12 
Way to go AM.... be interesting to see the results.....

seems that a few people are at the stage of replanting....

would be good to see a few others maybe do the same thing.
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johnnie7au
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PostPosted: May 13th, '07, 21:17 
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A true science teacher !
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aquamad
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PostPosted: May 13th, '07, 21:18 
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would be good to see a few others maybe do the same thing.

if you mean experiment with different planting media etc then I agree Rup.... I know that established seedlings from places like 'B' survive in the bigger stones, I want to see just how well seeds do too :)
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Delgrade
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PostPosted: May 13th, '07, 21:28 
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so is this system for you or the students ?? shouldt you be getting them to run the experiments ??

.. just being cheeky, my wife is a teacher i know how things work

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aquamad
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PostPosted: May 13th, '07, 21:29 
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I thought I would post a pic of the auto siphon I installed too - made from 'throw away junk - a section of garden hose and a length of old dwc from a demolished building... works a treat! :)


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auto siphon.jpg
auto siphon.jpg [ 55.16 KiB | Viewed 2687 times ]
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aquamad
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PostPosted: May 13th, '07, 21:33 
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so is this system for you or the students ?? shouldt you be getting them to run the experiments ??

LOL- normally I would leave it to them... BUT they are running a little short of time at the moment and I am hoping that they will think up some more experiments after seeing what I started...
and they will be continuing with the experiment I started - I start it, THEY have to finish it :mrgreen:
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aquamad
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PostPosted: May 13th, '07, 21:34 
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so is this system for you or the students ??

And of course its ONLY for the students - I would NEVER think of using it to get me AP fix - no... not me ;)
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aquamad
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PostPosted: May 13th, '07, 21:36 
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A true science teacher !

colon takes a bow colon
why, thank you :mrgreen:
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aquamad
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PostPosted: May 14th, '07, 19:59 
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FINALLY!!! :)
The pump for the students arrived today! We have been using my pumps to keep things running thus far... once this pumps is properly plumbed in it will free up 3 other pumps for me to use elsewhere :)
now to get into plumbing it all up :mrgreen:


Attachments:
File comment: A pic of the pump itself... looks nice and the box claims that it is designed for continuous running
pump front.jpg
pump front.jpg [ 35.51 KiB | Viewed 2658 times ]
File comment: The sticker on the pump - made in italy too...
so how good/poor is this pump according to these stats?
pump label.jpg
pump label.jpg [ 48.59 KiB | Viewed 2650 times ]
File comment: the label off of the box with pump stats - this pump is a subpond 300
pump data.jpg
pump data.jpg [ 44.89 KiB | Viewed 2653 times ]
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aquamad
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PostPosted: May 14th, '07, 20:09 
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From what I understand the students have payed in the region of $280 to $290 for this pump :shock:
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