Originally Posted by jeffaquarius
You do not need another pump at the refugium. Just elevate it then drill a hole and add a strainer for overflow. I use a sturdy plastic container and it works fine. Your plumbing configuration may not work effectively though. If the overflow pipe is straight down you will only get a trickle to the fuge even valve is fully open.
That plumbing configuration in the refugium will NEVER work in fact. You will never be able to EXACTLY match the return from the refugium to the wet/dry filter to the overflow feed to the refugium. Fortunately, as Jeff says the pump is not needed at all.
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