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steve
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PostPosted: Dec 21st, '07, 13:24 
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430W electrical ;)
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bio-farmer
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PostPosted: Dec 21st, '07, 13:26 
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oops.
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bio-farmer
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PostPosted: Dec 21st, '07, 13:27 
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65w x 6= 390w
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bio-farmer
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PostPosted: Dec 21st, '07, 13:28 
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do you know the output at 2m head?
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steve
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PostPosted: Dec 21st, '07, 13:33 
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of the ebara?
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bio-farmer
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PostPosted: Dec 21st, '07, 13:34 
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yeah
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steve
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PostPosted: Dec 21st, '07, 13:34 
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140lpm @ 2m

1.8m head MINIMUM
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bio-farmer
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PostPosted: Dec 21st, '07, 14:52 
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1680L/Hx6= 10080 L/H

140L/M x 60= 8400 L/H

10080L/H / 8400L/H = 1.2

390w/ 250w= 1.56

so at 2m head 6 of the smaller pumps will turn over 1.2 times the amount of water. it will however use 1.56 times more power to run.

then of course it will nearly cost a grand to have a pump in each tank. ouch.
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Delgrade
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PostPosted: Dec 21st, '07, 20:39 
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BF i got a bit confused i thought you said 15 cm from the bottom of the tank,

with my tanks im going to have to go through the bottom of the tank as i cant find any fittings to go through the walls of a corragated tank so i have a few issues with gravity draining my tank dry ( its keeping me up at night ) so i kinda had that in mind but your going through the wall not the floor so either one of yoru tanks will always have some water in it ( asuming you keep the pumps off the bottom :) )

sorry if i confused you i am not that great at explaining my self verbaly and realy bad when i write

Cheers
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bio-farmer
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PostPosted: Dec 21st, '07, 22:17 
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Delgrade wrote:

sorry if i confused you i am not that great at explaining my self verbaly and realy bad when i write



join the club. you misunderstood what i was trying to get at. we got there in the end though. i think. :)
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Troutman
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PostPosted: Dec 22nd, '07, 11:04 
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BF you might want to check out the RIO Hyperflow pumps on ebay. I ordered a few yesterday and they seem to have the best litres per watt of power of any other pump I could find. I ordered the 50 watt model which pumps 3300 lph at 1.8m head and it cost $118. There are 10 models in the range so there should be one to suit what you are after.
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bio-farmer
PostPosted: Dec 27th, '07, 21:04 
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thanks for the tip troutman. will look into them when the time comes.

here is a pic of plant progress. as you can see the pumpkins in the background and cucumber in foreground are being trained up to the roof.

today i noticed some fruit on both. will take pic of the fruit tomorrow. i also noticed some mildew so will need to treat the leaves with milk tomorrow.

the plant growth is phenomenal atm. the pumpkin must be growing 30cm a day. this coincides with an increase of fish feed due to higher temps.


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DanDMan
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PostPosted: Dec 27th, '07, 21:14 
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Milk treats mildew? Really? I lost 70 peaches to mildew this past spring...
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RupertofOZ
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PostPosted: Dec 27th, '07, 21:19 
BF... this bloke seems to have the most consistent and best pricing on eBay for "Rio" pumps...

http://cgi.ebay.com.au/Rio-Hyperflow-12 ... dZViewItem
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veggie boy
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PostPosted: Dec 27th, '07, 21:21 
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BF - be sure to hand polinate your pumpkins for maximum fruiting.
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