Help. Need help on drilling my tank....if I even can????

[Coonie]

I haven't been on here for a long time but I'm right in the middle of tearing down my 90g to sump it. Made that diy loopty lo over flow thing. Ya it works but unreliable. Won't trust it. I need help with if I can drill my tank?????? 4ft long tank with thin glass?  Anyone know how to tell????

 

[TORX]

4' and thin...do you know tge make of tank and where it was purchased new? Most likely tempered eitherway though.

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[Coonie]

I've had the tank for years. No clue what make or anything. No stickers on bottom either...

 

[nexusnight]

Worst case drill the back or side. If it's a store bought tank chances are the bottom is temered. U can utube how to test with ur phone and polarized sun glasses. Is does work too


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[Neopimp]

I am betting just the bottom is tempered.  But do the YouTube thin to make sure.  If its not tempered then the rest is pretty straight forward.

 

[Coonie]

I just wanna drill the back for a overflow. What's this utube test? Lol

 

[davesolo29]

U need to be sure the tank isn't made from tempered glass or it will shatter when being drilled. 
It's not really a u tube test as much as it is a tutorial to learn how to differentiate between tempered and non tempered glass.


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[Duke]

Grab some Raybans and go look at the rear Windows of cars outdoors, if you look at your tank and see the glass the same way as car glass looks, you can't drill it.

 

[pulpfiction1]

yes,uniform lines will indicate tempered

http://www.youtube.com/watch?v=-xiD7C0hLX4

http://www.youtube.com/watch?v=UQicz_ywia4

http://www.youtube.com/watch?v=Yb9K3IGXwC0

 

[reeffreak]

I will bet that 90 is drillible on all sides but not the bottom.

 

[pulpfiction1]

yup

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