Drilling ??? and Size

[Chrash236]

Hello All,

My current tank is a 120 RR, but I have taken all of the rock out to cook it and while I am doing this I thought I would increase the size of my bulkheads in my RR box,

Questions
1 Is this possible?
2. If I wanted 2400 of flow, I know I need to drill a 2 inch hole but buy what sizes bulkhead
3. Do I have to mess with my return line hole as I will just add another return to the other side of the tank.
4. Will I crack my tank if I do this


Thanks
Chris

[dragon_slayer]

what brand tank is it? i'm not positive about an Oceanic but the AGA has a tempered bottom so you can not re-drill the holes larger sorry.

also a 2" hole doesn't fit standard bulkheads, a 1 1/2" bulkhead uses a 2 3/8" hole. your 1" bulkhead factory drilled should be a 1 3/4" hole already.

kc

[Cgamer]

Also, yes, you would have to re-plumb everything. 1" is 1" is 1". If it's 2" input, but still going into a 1" tube, it's going to be limited by the 1"....

[Chrash236]

Ya cant drill just read tanks site and its temperd (spelling?) glass,

I guess now I will focus on a killer closed loop setup.

[lovethereefer]

you could possibly drill holes in the back wall and install the tank long overflow box that you can find in Anthony Calfo's book or there is a thread aobut it on diy on rc right now.....the back glass is not tempered