Return Pump Suggestions

[TheReefGeek]

I should elaborate on those reasons I guess!

1. Potential micro bubble problem, flow through sump is too fast to allow air bubbles to pop at the surface before hitting the return pump

2. Overflow safety/backup. I like to use two overflows and only push the volume that 1 can handle, then in case one plugs/jams up then the other one will still handle the volume

3. Try to match your pump to your skimmer flow requirement, and plumb the overflows right into the skimmer for optimal skimming efficiency.