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skygazer
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 07:52 
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Chappo wrote:
Gravity from tank to grow bed ,, gravity from grow bed to sump ,, pump from sump to grow bed:)


Yes I would prefer that configuration with a venturi drain but conditions, landscpare and WAF do not alway allow for that tpye of setup? So many people end up with a sump as well.
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Chappo
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 07:54 
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Conical bottomed stainless steel tank on stand ,, yep that helps:)
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Chappo
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 07:57 
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On the pump issue ,, most set-ups have around 2 metre head ,, so get double what you want now ,,2,400 litres per hour at 2 metre head is a Jabao 5,000 ,, about $90 on ebay.
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Nocky
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 08:13 
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Chappo wrote:
On the pump issue ,, most set-ups have around 2 metre head ,, so get double what you want now ,,2,400 litres per hour at 2 metre head is a Jabao 5,000 ,, about $90 on ebay.

Am going bigger next year, but the 1200lph pump I have now doesn't seem to quite do the job, so will go for 4800lt pump on ebay $69 plus post, no I don't have a sump just a home made in tank bio filter with about 2foot of lift
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veggie boy
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 16:52 
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[Growbeds on your roof?


Nup - but use about 1.7 metres in my system of pump in sump to fish tank, gravity from fish tank to grow-beds, gravity from grow-beds to sump. Sump in the big system will be at ground level (to hopefully allow for 2 levels of grow bed and cascading setup). The extra bit of head is to account for the fact that the su,mp will probably be 7 or so metres from the tanks.
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Nocky
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 20:36 
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Well my problem sorta solved, got tank for a carton of TED's, guy said holds about 1000lt's, :oops: country bumkin me thinks sounds good, not quite full 900lts, by a 1200lph pump, excellent, fact is tank is 1.8mt round by 800mm water hieght, :!: :!: = about 2400lt so pump is to small by half, man what a dick, 9You guys shoulda picked that up :D :D :? , but seriously now bought a 4800lph so should do the job a lot better, shit I feel like a dick :cry: but learn by mistakes, hence the if i had to start again thread
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Don_Fish
 Post subject: Re: How Big a pump????
PostPosted: May 27th, '08, 21:52 
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I was hoping "bigger was better" and would mean future room for system growth. I guess I'm a "bigger is better" guy, stuck in a "less is more" world.

Over kill my be my problem... Will the fish be happy if the water is too rough? Is my current too fast? Is there a, "too fast"? I read somewhere here... the fish don't care (Channel Cats 200).

The tank is 3,500L+, the pump will turn the tank 3 times an hour but I can't filter this water without flooding, so it just wraps the grow beds & returns.

I got a honda sump, here: http://www.hondapowerequipment.com/prod ... id=WSP33AA

It's 170LPM/ 10.200LPH @ 25ft. head lift
thanks for the feed back,
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Outbackozzie
 Post subject: Re: How Big a pump????
PostPosted: May 28th, '08, 06:52 
Seriously, this cant be healthy.
Seriously, this cant be healthy.
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Fish wont care Don :)
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