Herbie style overflow

[Joel_155]

So im thinking of changing somethings around and Im curious about an herbie style overflow. My tank has dual corner overflows predrilled for two 1/2 in bulkheads for the return and one 1 in drain. I currently have a durso in the drain and Im using one of the 1/2 in bulkheads as an emergence drain.

So i got a new sump and since im going to change i figured this is the best time to redo all the plumbing. Would I be able to modify my current overflow to work as an herbie style? I was thinking of changing the return to run up over the back of the tank and using all the bulkheads in the overflows to setup the herbie.

A


Any ideas about this? Also...are closed loop systems still viable or not worth it with modern powerheads. Im using a tunze 6105 amd it works but id like to add more flow to my tank. I seem to get debris that gathers on the sand bed and id like to add flow to change that. Any help or ideas would be appreciated.

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[Joel_155]

I guess basically to change my setup over to the herbie style i would keep the 1 in drain submerged and the use the two 1/2 in holes for the other drains. One 1/2 inch would take like 5% and thw other would be dry as an emergency. Will this work using 1 inch and half in drains?

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