Plumbing a 240 GAL tank

[tootall1010]

I am looking at buying a 240 tank that is already drilled but not what I am use to, the holes are evenly spaces across the back anyone know how this would be plumb for overflows and returns?

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[tootall1010]

THe picture did not work right but the holes start about 4 inches for the back corner and are about 18 inches (one about 2in drilled hole) apart across the back.

[Slphappy]

I take it there aren't any overflows? If that is the case, then I would think that some of the holes had bulkheads and propperly fitted pipes that were used as the overflows.

A pic would help determine if this is the case or not...

[jrpdriver]

I have mine driller similar, 2 of my holes are connected by 2 t's and a piece of pvc that I slotted on top for my over flow and the other holes are for the return