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PostPosted: Mar 19th, '12, 00:15 
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I have a 1000L Ibc tank for the fish, a 800L Ibc tank for my sump and a grow bed 8' x 3' x 1'. My question is what size of pump should I use.


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PostPosted: Mar 19th, '12, 07:34 
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We are using a 3000 litre pump on systems that size, and optional flood and drain or continuous.

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PostPosted: Mar 19th, '12, 07:49 
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i have a devil 4000 running mine, its got more than enough power to run the system currently and when i expand the system to more growbeds and sumps

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PostPosted: Mar 19th, '12, 07:50 
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faye wrote:
We are using a 3000 litre pump on systems that size, and optional flood and drain or continuous.


Faye why such a large pump? I thought turning the water ever hour was all that was needed, so in his case a 1k litre pump would be what he needs. I don't know, just asking.

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PostPosted: Mar 19th, '12, 08:05 
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It gives you the choice to run on a timer 15 mins per hour gives you 750 litres turnover. It means that you have more option to expand, and we know that often happens :)

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PostPosted: Mar 19th, '12, 08:07 
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Most pumps are rated at 0 head helomech.

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PostPosted: Mar 19th, '12, 08:21 
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faye wrote:
It gives you the choice to run on a timer 15 mins per hour gives you 750 litres turnover. It means that you have more option to expand, and we know that often happens :)


Oh okay that makes sense. Thanks.

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PostPosted: Mar 19th, '12, 08:22 
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Charlie wrote:
Most pumps are rated at 0 head helomech.


True, right now my temporary grow beds are at 7 feet of head. It cut my pump way back.

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PostPosted: Mar 19th, '12, 08:55 
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greeting's..

Have to agree with Faye.. go 3000lt/h pump.. just make sure that the pump is very efficient, as in Low power consummation is the main thing that I try to push..

Also Faye is correct there is a great chance that you will expand..

Have you had a Look at how the system will Look as a finished product and have you decided on how you are going to run it..

Juergen

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PostPosted: Mar 19th, '12, 09:50 
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helomech wrote:
Charlie wrote:
Most pumps are rated at 0 head helomech.


True, right now my temporary grow beds are at 7 feet of head. It cut my pump way back.


Head height is from the surface of the water to the height being pumped. Is that what you measured Helomech? I talk to a lot of people here in the shop that aren't aware of that fact, so I just want to make sure. Just ignore me if you already knew that.

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PostPosted: Mar 19th, '12, 10:00 
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faye wrote:
helomech wrote:
Charlie wrote:
Most pumps are rated at 0 head helomech.


True, right now my temporary grow beds are at 7 feet of head. It cut my pump way back.


Head height is from the surface of the water to the height being pumped. Is that what you measured Helomech? I talk to a lot of people here in the shop that aren't aware of that fact, so I just want to make sure. Just ignore me if you already knew that.



I didn't know that when I bought my first pump, but learned that after.

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