Scott's 270g aka Project Mayhem

[Myka]

Yes, the pic helps! I think you made your sump too short in comparison to the height of the equipment.

Originally Posted by Reef Pilot

You could add an 90 degree elbow fitting to your return pump with the opening pointed down to allow a lower water level if so desired. I had to do that with a return pump to avoid it sucking air.

I have this on most of my pumps so they can have lower water level.