what size drill bit for what size hole?

[haydenholgate]

i am going to order a bit to drill my tank soon and i need to know what size bits match up to what size bulk head.

[landy]

what bulheads are using and what size? the brand and schedule DOES make a difference.


landy

[haydenholgate]

i was hoping you could suggest a bulk head i am new to drilled tanks, i want to be able to use sch 40 standard water pipes i can get at hd.

[funman1]

Here's where I get mine sometimes.
And they even tell you what size hole you will need.
http://www.championlighting.com/home.php?cat=436

Also here's my video on drilling a tank..
http://www.youtube.com/watch?v=ZMctXz7GraU

[haydenholgate]

okay i am setting up a 90 aga and i want to know what size bulk heads to get? i want a closed loop but i dont know from where to where yet and i am thinking about running a squid

[Freed]

I don't know much about drilling glass tanks but you will want to make sure the glass is not tempered before you try. I have only drilled acrylic.

[haydenholgate]

its from 1994 and i am drilling the back aga never made any tanks with 3/8s glass that were tempared any where except for a few that had the bottom temerd.

[funman1]

Well how big of a pump do you plan on putting on the CL?
Keep in mind squids arent rated for very much flow when compared to what some run on their closed loops.

normally the intake for a closed loop is 1-2 sizes bigger than the output. This is because the output will be pressurized and thus contain more flow vs the input at static tank pressure.

[woz9683]

FWIW, any combination of sch80 or sch40 pipe and fittings (or bulkheads) will be compatible. They're all the same on the OD, it's only the wall thickness and therefore the ID that changes between sch40 and sch80.

[wooden_reefer]

<a href=showthread.php?s=&postid=10850023#post10850023 target=_blank>Originally posted</a> by haydenholgate
i was hoping you could suggest a bulk head i am new to drilled tanks, i want to be able to use sch 40 standard water pipes i can get at hd.

The outside diameter of the pipe that fit does not vary from sch 40 to 80.

[chrisjet]

ok heres the run down - order bits off ebay from lau*** <--- thats his name on ebay. 28mm=1/2 38mm= 3/4 45mm=1" and 60mm=1 1/2" they should fit both sized bulkheads they work on my schedule 80 bulkheads. Its very easy to drill glass just make sure you keep it wet.

[haydenholgate]

okay i will order a set of bits and then a 60 mm so i can get what ever bulk heads i want.

[chrisjet]

60mm = 1 1/2" bulkhead get the black bulkhead not the grey or white