Any of the aquariums I have seen that have an external pump are much quieter than the Mag 12 submersible pump that I am currently using. The next sump that I build will definitely be built for an external pump. Other advantages of an external pump is that they are normally more energy efficient than a submersible pump and they run cooler.
If you are going to use a Reeflo Snapper as a return pump just be aware that you will be putting a lot of flow through your sump and could have micro bubble issues. I would definitely consider putting ball valves on the discharge side of this pump so you could "throttle back" the flow if necessary. I think these pumps put out around 2500 gph before friction loss which is a lot of flow to be putting through your sump.
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Last edited by Palster; 10-20-2007 at 05:40 PM.
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10-20-2007, 05:32 PM
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