What return pipe size and what pump size? - The Planted Tank Forum
 
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post #1 of 8 (permalink) Old 08-15-2008, 10:50 AM Thread Starter
 
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What return pipe size and what pump size?

Hi there,

I was wondering if someone could help me calculate the return pipe size and return pump size needed. Using this calculator http://www.reefcentral.com/calc/drain.php it tells me based on (5x the volume of my 4x2x2) 570g/2160l I need a 9inches/23cm if linear overflow and a 1inch/2.54cm durso stand pipe. I am having 2 return pipes but I do not know what size to have them especially given they will go through my co2 diffuser then split into 2. As for return pump size it will have to pump to approx 4 1/2 - 5ft (through the co2 diffuser) I know each pump is different but there must be a ball park size.

Any help would be appreciated.

Regards Darren
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post #2 of 8 (permalink) Old 08-15-2008, 12:07 PM
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Is this from a sump?


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post #3 of 8 (permalink) Old 08-15-2008, 12:11 PM Thread Starter
 
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Yeah sorry Glenn from a sump....
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post #4 of 8 (permalink) Old 08-15-2008, 12:15 PM
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I would say then to go with 1" outflow to your diffuser, then split to 3/4". On each leg of these you will want to add ball valves to adjust flow, if you need to up flow a bit, throttle down on the valves accordingly. This will give you some versatility. I would have one on the 1" leg as well.

Alot of sumps also have a return to the sump for a bypass if there is "too much flow". This allows you to throttle the flow way down if necesary.

AS far as pumping.... whats the height to the tank lip from the sump?


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post #5 of 8 (permalink) Old 08-15-2008, 12:19 PM Thread Starter
 
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about 4 1/2 - 5 ft some where about that
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post #6 of 8 (permalink) Old 08-15-2008, 12:20 PM
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n/m just saw your OP.

I would say the Quiet one 2200 seems to fit. However since you will have substantial losses inthe reactor and split, you may want to go up one pump to the 3000. Tough call.

http://www.drsfostersmith.com/produc...49&pcatid=9849


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post #7 of 8 (permalink) Old 08-15-2008, 12:24 PM Thread Starter
 
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I know too much and it floods not enough and the tank gets dirty....
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post #8 of 8 (permalink) Old 08-15-2008, 12:49 PM
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Quote:
Originally Posted by duzzy View Post
I know too much and it floods not enough and the tank gets dirty....
You lost me here.


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