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Coachrdb · 12/26/2015, 07:21 PM

I have a 68 Gallon Cadlights tank. It came with a 1" drain and a 1/2" return line. The pump that came with it is rated at 500GPH and I would obviously like to swap it our for a more powerful one. It's approximately 3' from the sump to the bottom of the overflow. In looking at the submersible pumps available, the most powerful ones are about 700GPH with a 1/2" outlet. So the question is... Do I settle for that or is there a way to work around it? I assume I could get a larger pump and work with a reducer to a 1/2" at the return line going up into the overflow. I guess I could also run a line up the back of the tank instead of using the overflow. Any other ideas or suggestions?

Thank you!

That was my first post by the way. Great site here!

12/26/2015, 07:21 PM	#1
Coachrdb Registered Member Join Date: Dec 2015 Posts: 17	Return Pump question I have a 68 Gallon Cadlights tank. It came with a 1" drain and a 1/2" return line. The pump that came with it is rated at 500GPH and I would obviously like to swap it our for a more powerful one. It's approximately 3' from the sump to the bottom of the overflow. In looking at the submersible pumps available, the most powerful ones are about 700GPH with a 1/2" outlet. So the question is... Do I settle for that or is there a way to work around it? I assume I could get a larger pump and work with a reducer to a 1/2" at the return line going up into the overflow. I guess I could also run a line up the back of the tank instead of using the overflow. Any other ideas or suggestions? Thank you! That was my first post by the way. Great site here!