BUILDING A PICKUP/RETURN PVC

[Elephino]

So I'm getting around to building a permanent water pick-up/return for my 125. I'm reading this and I just want to make sure I've got it right.

I have a magdrive 950 that should do a little over 800 gph at 3 feet. According to the numbers in the first post of the pipe sizing thread I need 1.25" pipe for this?

 

[dawnmarie]

You read it right. Are you going to drill the tank or go over the top ? Sump or canister ? I would likely go 1 1/2" on the pick up/ suction side to ensure adequate flow.

 

[Elephino]

Over the top into at least 1 20 gallon sump.