View Full Version : Making a hole bigger
I have a tank with 2 holes in the overflow, one is 3.5" for 2.5" bulkhead and one is 1.5" for a 0.75" bulkhead, I want to make the small hole bigger so I can use the herbie style drain. what is the best way to do that? thank you.
BlueWorldAquatic
11-27-2011, 02:53 AM
how thick is the glass?
BlueWorldAquatic
11-27-2011, 03:08 AM
should be easy then, if it was thinner you'd have to worry about cracking.
Hustler
11-27-2011, 03:14 AM
I just did this exact thing on my sump with 5/8th glass. It was a 1 1/2 inch bulk head hole and now is a 2 inch. Bought the bit online mops something, came in three days...only took a rum and coke to deal with the screaming of the glass and tada a perfect hole over a hole. :)
http://img.photobucket.com/albums/v601/dragonfish1ca/016-6.jpg
Maverick00
11-27-2011, 04:10 AM
what kind of rum? :D
Hustler
11-27-2011, 04:58 AM
The Captian keeps me straight LOL....
Ive done many a hole but this was my first hole over a hole... went better than most :)
do you need to have the glass wet to do this? and What type of bit? like a diamond tipped hole saw i'd imagine?
mikejrice
11-27-2011, 06:46 AM
do you need to have the glass wet to do this? and What type of bit? like a diamond tipped hole saw i'd imagine?
Yes, you well need to keep water on the glass while drilling to keep it cool. You will need a diamond bit made for drilling glass.
Michael Rice
Marine Engineers Aquarium Blog
Sent from Tapatalk so excuse my poor English
Yes, you well need to keep water on the glass while drilling to keep it cool. You will need a diamond bit made for drilling glass.
Michael Rice
Marine Engineers Aquarium Blog
Sent from Tapatalk so excuse my poor English
Cool I got one right! Lol
Aquattro
11-27-2011, 02:33 PM
Cool I got one right! Lol
Don't forget the dam. You need to keep the water in place :)
Hustler
11-27-2011, 04:21 PM
I like to make a wall around the hole with plumbers putty then fill it with water. I also tape the otherside so the water stays in there till the hole is complete.
And put a towel inside the tank so the plug dosent knock the other payne of glass out :)
YOUTUBE :)
Maverick00
11-28-2011, 02:07 AM
i like the 2x4 method the best, keep water flowing in and out and takes away the glass residue
http://i1087.photobucket.com/albums/j466/RangerFX409/DSCN0446.jpg
Hustler
11-28-2011, 11:02 PM
I wish my clamps looked like that.... Mine are all covered in tacks cuts and stray arcs LOL
hillegom
11-29-2011, 12:16 AM
Theres nothing like a Bessy
anyone has a 3" bit that want to sell :). LMK.
Hustler
11-29-2011, 04:22 AM
I can lend you mine... I just need it on hand in the future for those random idea nights lol
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