Bulkheads and Hole sizes

[Mr. Noob]

So I'm going to be drilling my 65 gallon soon and I have some concern with the size of bulkheads I have along with my hole saw. I ordered a 35mm diamond hole saw to drill holes large enough to fit 3/4" bulkheads for my overflow, however; I am seeing that many recommend atleast 1" size holes. Would my GPH be sufficient with this size bulkhead or should I re-lrder parts to accommodate the 1" idea? Thank you!

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[mcgyvr]

I personally wouldn't use a 3/4" bulkhead on anything but a 20G or smaller tank drain setup..
Anything larger gets 1" bulkheads (or more)..
Are you doing a bean style overflow? or herbie/durso?

[Mr. Noob]

I'll be doing a bean animal setup. I actually decided to up the size and returned the fittings and drill bit.

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[eutimio]

Get schedule 80 bulkheads if you can.
Way sturdier than the regular 40.

[Mr. Noob]

are schedule 8p fittings readily available? Everything I'm seeing is online

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[eutimio]

Not that common but worth the wait. When you have the 2 side by side you’ll know what I mean.
Got mine from BRS.

[mcgyvr]

IMO sch80 is overkill for this...on a larger system its not too crazy but on a 65 they will just take up too much room

[Mr. Noob]

I still havent decided yet. Waiting on the overflow box to arrive and then will decide

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