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01-04-2007, 01:38 PM
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#1
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Nothing to See Here
Join Date: Aug 2005
Location: charleston, sc
Posts: 24
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internal or external return
Any experienced suggestions for a return pump?
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01-04-2007, 01:40 PM
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#2
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Just some guy, you know?
Join Date: Sep 2005
Location: West of Dimples
Posts: 18,460
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If I were to buy a new return pump right now I would probably go with an Eheim,... I've heard nothing but good about them, and apperently they don't transfer heat as much as most and are very quiet. You can also use them exterinal or internal.
Whiskey
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01-04-2007, 02:39 PM
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#3
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Big Fishy
Join Date: Mar 2006
Location: Fountain Valley, CA
Posts: 405
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I learned the hard way that Mags aren't intended for external use (according to Marinedepot).
I like external, leaves extra room in the sump.
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01-04-2007, 04:04 PM
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#4
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Lights are off up here :D
Join Date: Feb 2006
Location: Los Angeles
Posts: 1,548
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my mag 5 is ok exteral np
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01-04-2007, 04:12 PM
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#5
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The Muddy Mod
Join Date: Dec 2005
Location: Uxbridge, MA
Posts: 5,060
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I currently have a Mag 9.5 in the sump for return and a Mag 5 in the sump for the chiller. Submersed pumps DO add heat but if they ever start leaking? So What??  |
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01-04-2007, 04:12 PM
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#6
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Join Date: Mar 2006
Location: spartanburg, south carolina
Posts: 4,703
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I don't think it makes a huge difference either way. I have a mag 7 that I run internally and it is pretty loud. i have heard that the other mags don't make that much noise. I have also heard good things about the Eheim pumps. IMO, the Mag and Eheim pumps are the best value in pumps and you won't go wrong with either one. Internal pumps probably have less noise and are easier to install, but they do add heat to the tank. External pumps add less heat, but can can be noisier and are harder to install with more risk of water leaking. |
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01-04-2007, 04:31 PM
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#7
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Professor Chaos
Join Date: Apr 2005
Location: Arkham Asylum
Posts: 9,756
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under 800gph, internal (submersable) and yes i would do Eheim. over 800 GPH go with a true external like a Gen-x pcx 40, 55, 70, etc... they will create less heat.
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01-04-2007, 06:08 PM
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#8
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Nothing to See Here
Join Date: Aug 2005
Location: charleston, sc
Posts: 24
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Thanks for the input guys. I will probably go submersible. I only have a 75g and i'm leaning towards a 30g sump.I dont see me using anything bigger more than 800gph
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01-04-2007, 06:23 PM
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#9
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Why I get nothing done...
Join Date: Jun 2006
Location: Beaverton
Posts: 2,960
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Eheim, though expensive, are great pumps. The one on my calcium reactor is absolutely silent. Nearly impossible to hear. |
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01-04-2007, 10:37 PM
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#10
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Something of everything
Join Date: Mar 2006
Location: Canada
Posts: 270
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I have Eheim 1250, around 300 gph - it doesn't have rubber feet and transfers vibration onto the glass without them. Don't know about the bigger models, but it's a big drawback - I'm keeping it on a sponge, that should be cleaned frequently.
Have Sedra 5000 in the same tank(sump) - different matter: suction cups legs, handle for convenient moving. Like it. Can't say anything about heat, longevity, head pressure or a noise - have it a few months only, it feeds a skimmer, didn't noticed any drawbacks, and the skimmer noise covers any other noise if it is present.
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