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- Feb 16, 2020
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So I happened to get a smoking deal on this 120g tank. It came pre drilled with a 1” and 3/4” hole behind the overflow. I’m 90% sure it was set up to be a 1” drain and 3/4” return as the overflow has a return hole in it.
I’d like to run it as a Herbie style overflow but due to some space constraints I can’t run a return pipe behind the tank without going into the wall.
I was playing around with spacing for a 3/4” bulkhead as shown in the pictures. Just looking for some thoughts on if the holes are too close together. I’m comfortable with drilling it, but I don’t usually have the space constraints this tank will have.
I’d like to run it as a Herbie style overflow but due to some space constraints I can’t run a return pipe behind the tank without going into the wall.
I was playing around with spacing for a 3/4” bulkhead as shown in the pictures. Just looking for some thoughts on if the holes are too close together. I’m comfortable with drilling it, but I don’t usually have the space constraints this tank will have.