All,
I recently bought a 93 gallon Marineland RR "Cube" 30x30x24 with 1/2" glass and drilled with two 1" holes within the overflow box. I'm planning on doing the Herbie method and using both holes as drains (one being the emergency drain).
So, now that I've used up both holes, I have to go up the back and over the top for the return but since this is a cube, I was planned on having all sides visible....and so, by having the return plumbing come up one side, this side now becomes eye sore (even with my Sch 80 piping) IMO. My question becomes, can I drill a third hole in my overflow box? (see photos). I'm not worried about the space, as you can see from the photos, there is a lot of space still left on the one side. I'm more worried about the structural integrity of the glass by cutting a third hole there. Anyone out there cut a third hole in there RR tank?
Disregard the fact that the top bulkhead is resting on the tank lip as the tank is upside down to provide photos (bulkheads are upside down to show spacing).
*I posted this over on RC but I'd be interested in hearing from you all on how you feel about this.*
