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#1
05-08-2010, 12:00 AM
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internal sump return pump vs external?
Are the internal sump pumps quieter than the external pumps like the dart?
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#2
05-08-2010, 12:04 AM
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I don't know I have not changed my sump over yet but I am. I think the internal sump pumps are easer to clean and maintain. My internal sump pumps are quiet I don't notice them running at all.
Bill
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#3
05-08-2010, 12:10 AM
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Pumps like the Dart are extremely quite as long as they are installed correctly, just a nice gentle hum. I also have a PanWorld100PXX, it handles 1/3 the water and is 3 times as loud.
__________________
210 Gallon slowly gaining population. Foxface, Naso, Coral Beauty, 2 Clowns, 2 Chromis, Orange Anthias, and Striped Goby.
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#5
05-08-2010, 01:01 AM
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Took me a while, but now that I run external, I never want an internal again. Much less heat.
__________________
Dan Pesonen Umm, a tank or 5
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#6
05-08-2010, 01:18 AM
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One of the reasons why internal pumps are generally quieter is because the water dampens a lot of noise. That is unless your return pump is rubbing up against something like the tank wall or a pipe or something. A lot of internal pumps will come with cushions/foam to cover the bottom so that it isn't vibrating against the bottom of the tank glass. Same principle applies to external pumps in that the key is to reduce vibration as much as possible. Although external pumps don't have the luxury of water to aid in noise dampening, they do have the luxury of being able to be bolted securely to something.
Heat is another issue in itself, but that wasn't your question :-) Last edited by kien; 05-08-2010 at 02:20 AM.
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