Question about hole size for bulkhead

[Niners4952]

I bought a 320 gallon tank that has a 2" hole drilled in the bottom on each side. Question is what size bulk head would I need and with just one 2" hole for return and exit water enough for my tank. I could drill the hole bigger or add additional holes if needed. the bottom is double layered and almost an inch thick so it will be fun to drill

 

[deeda]

Are you positive the holes are exactly 2 inches in diameter?

A 1" bulkhead fitting usually calls for a 1-3/4" hole and fittings 1-1/4" need a 2-1/4" hole.

Is the tank glass, acrylic or something else?

 

[millerkid519]

Ya that hole size doesn't make sence to me either. Possibly 1 inch sch80?

 

[davenmandy]

If it's 2 and 3/8 then it's 1.5" which makes sense for a tank that size.

 

[millerkid519]

It is 1.75" for 1" sch80 I would ask you to double check the size of the hole if you can plz

 

[Niners4952]

yeah the hole is 2" the bulkheads that came with the tank are about 1 3/4. Also I will be running a reeflo dart pumping at 3600gph will just 1 return and drain at this size be enough? Should I drill the hole bigger or add more holes?

 

[Oddball]

Perhaps this will help:

 

[Niners4952]

Maybe its 2 1/16 hard to measure in the trailer but pretty sure its 2". Maybe I could pug the holes and make a DIY overflow for more current, bottom is an inch thick and dont really want to drill it

 

[davenmandy]

Unreal post oddball

 

[jaws7777]

Your tank isnt tempered glass right ?