[mps9506]

Originally Posted by framerguy

Danner Mag-Drive Supreme 18 1800 GPH Pump (Saltwater Aquarium Supplies > Water Pumps > Submersible > Over 1000 GPH )
This is what I would use for your set up. At 5' of head the Mag 18 puts out 1200gph. They are very quiet pumps. They are for submersion only and need the water to keep them cool so they do add heat to the water. If that is an issue for you take it into account.

I have to respectfully disagree on the Mag Drives being a quiet pump Of course one person's idea of quiet and someone else's idea of quiet can be two different things.
If you can go with external pumps I agree with the above post on the Sequence pumps. Extremely quiet and cost efficient pump to run. If you are aiming at 1500 gph turnover through your sump, than I would really recomend going with an external pump. Keep in mind you don't have to have that much turnover going through your sump though.