Drilling extra Hole
- Thread starter Peterski
- Start date
- Tagged users None
T-J
2500 Club Member
You'll first have to determine if the glass you want to drill is tempered. If it's not, then you can look at drilling it. There are a bunch of videos on YouTube that can guide you through this. Or, you can take the tank to a glass company and see if they can drill it for you.
Porpoise Hork
Well-Known Member
Drilling glass is a slow process. You will need a good quality diamond hole saw, a variable speed drill, constant water supply for drilling and about 15-30 minutes per hole. This is not a process than can be rushed. If you rush it (especially at the end) you will break/chip the glass. Trust me I know from experience. Drilled a 75g and on the 4th and last hole I rushed the last maybe 64th inch of the hole and cracked the panel. Had to scrap the tank and got another one and start all over. Last thing to note is make sure you have enough space between the holes to not crack the glass at those points and for the bulkheads to be able to seal.
As @T-J recommended there are a ton of videos on Youtube about it. Since your tank already has two holes in the bottom, that panel is safe. It is unlikely that the other panels are tempered but you never know, but there are ways to find out prior to drilling. Last thing you want to do is start drilling and have the panel explode on you if it's tempered.
As @T-J recommended there are a ton of videos on Youtube about it. Since your tank already has two holes in the bottom, that panel is safe. It is unlikely that the other panels are tempered but you never know, but there are ways to find out prior to drilling. Last thing you want to do is start drilling and have the panel explode on you if it's tempered.
Last edited:
Porpoise Hork
Well-Known Member
This thread should help.
Can you tell if tank is tempered glass?
Is there anyway to tell if aquarium glass is tempered or not? I just purchased a 90gal tank to start a reef tank. the previous owner had no idea if it is tempered glass or not. I would like to have it drilled for an overflow, but if I can't figure out if it is tempered or not I will get a CRP...
www.reef2reef.com
