Tempered glass

[BBQHILLBILLY]

When I look to the side of the glass and into the glass, how can you tell if it is tempered?
It is heated until softened and then cooled. It is used in car windshields, showers, etc . . . bottom of tanks.
It is 4 to 5 times stronger then untempereed glass. But you cant drill, because it will shatter in a millions of little pieces.
So I need to drill some holes. How do I know if I have tempered glass or not? lmk

[Big_Pun]

hit it with hammer....

[Zack]

Get polarized lenses and look at it in the sunlight. If it's polarized, it'll have a rainbow effect on it.

[BBQHILLBILLY]

edit: I see the rainbow with or without the sunglasses on the bottom glass

[BBQHILLBILLY]

found this video clip, gonna try this method out

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

[Scutterborn]

Use a laptop computer monitor. Make sure it doesn't have a polarized filter. It was driving me nuts while I was trying to use my MacBook to determine whether or not my 240 was tempered. I then later realize that the screen had a polarized filter which gave me bad results. I then pulled out the kids laptop which was an HP. It worked much better when using my polarized sunglasses


-Ben-

[BBQHILLBILLY]

interesting after looking at the video clip and how it showed those lines.
Now if I look into the side glass panel the lines are up and down.
If I look on the front and back panels the lines are not up and down, but rather side to side and can only see them at top
and at the bottom
The tank is full of water and rainbow is only being viewed looking through the front of the glass but disappears looking into the side.

[Scutterborn]

Does it go mostly dark when you go 45 degrees off rotation?


-Ben-

[BBQHILLBILLY]

no . the rainbow light just seems to be created when the light is refracted when traveling from air through the water through front glass and side glass does not have the light traveling through therefore no rainbow effect

[Scutterborn]

If you remove the glass from between the computer monitor and whatever it is that you're using as you're polarized filter, does the screen go dark when you rotate 45° or 90°?


-Ben-

[BBQHILLBILLY]

i cant seem to get that project to work right, must be the 3d glasses i have.

[Paul28]

Just get 2 mp40s and call it a day don't cut the tank up :)

[Scutterborn]

I used polarized Oakley sunglasses. I didn't have the 3d glasses. Once I had the correct screen it was easy to tell the difference.


-Ben-

[TPinner@saltyfishaquariums]

Who is the manufacturer of the aquarium?

Most will tell you if that size is tempered or not. Some even list it on their websites.

Terry

[Scutterborn]

Just get 2 mp40s and call it a day don't cut the tank up :)

Normally I'd blast your comment! I love the look of a closed loop system. However, I've decided to go with mp's on my newest build. So I'll just shut my mouth!

😜


-Ben-

[Paul28]

:)

[BBQHILLBILLY]

Paul can you lend me those 2 mp40s? I have all these external pumps to use. Even if I can just get a couple holes in here to get the sw to the sump. and Dont know who the manufacture is.


I love those mp40s but I like a little bit of a different look without the powerheads.

[Scutterborn]

You'd need more than two on that tank, Shane! 😁


-Ben-

[Paul28]

Parol officer said no to me today like always I could get her on top of my tank to lift water out and dump it back in every 30 secs think she will go for it while you have the mps

[Paul28]

You'd need more than two on that tank, Shane! 


-Ben-

Yeh maybe 3 if not 4 or go mp60

[TPinner@saltyfishaquariums]

Can you find the manufactured date on the tank? If so are there any symbols?

[BBQHILLBILLY]

lol no powerheads. thank you very much:bigsmile:

[Flyride95]

Just get 2 mp40s and call it a day don't cut the tank up :)
I completely agree!

[BBQHILLBILLY]

Can you find the manufactured date on the tank? If so are there any symbols?

is it inscribed somewhere, theres nothing I can find. cant find anything.

[Paul28]

most of the time look from the top into the tank its on the right or left side on the glass near the edges under the plastic trim if that made since

[TPinner@saltyfishaquariums]

Usually it is hinden around or under the trim. Most of the time you have to look from the inside of the aquarium out to find it.

[BBQHILLBILLY]

right now its got a ton of water in it. Ill clean it up a bit more around the trim and see if i can find something.

[BBQHILLBILLY]

label said 02-16-07 HM so it was homemade in 2007??lol Theres an old penny in there too.:bigsmile:

[Big_Pun]

hammer would faster solution to the inevitable out come as shown in the past tanks. so why not just leave this one alone.


usually the bottoms on big tanks are tempered

[BBQHILLBILLY]

I got plans Chris of a bigger new tank, for tangs. Im trying to find where I can drill this tank that looks to be in excellent condition. This tank is in better condition than the 180RR I am using. Tempered glass is stronger so it only make sense to put on bottom. May not be able to drill the bottom, especially if tempered. This thread is about identifying tempered glass.
where it is and where it is not

[TPinner@saltyfishaquariums]

I looked at the picture of the tank in your other thread, and that is a tough tank to figure out.

[BBQHILLBILLY]

its a white label, has dark brown trim, possibly oceanic, very good condition

[BBQHILLBILLY]

may have to go borrow Bens glasses. funny i was hoping there was an ez way to tell the difference in tempered and nontempered

[TPinner@saltyfishaquariums]

Hmm... If it is Oceanic you could be in luck. As far as I can recall Oceanic didnt use tempered glass on the sides, and for the most part not on the bottom. But, that is not for sure.

[BBQHILLBILLY]

thanks for the feedback, good info, are you familiar with natures view oceanic?

I was informed that it might be natures view oceanic but still dont know if its tempered or not

[BBQHILLBILLY]

Heres a couple pics. I was hoping there was an ez way to identify tempered. need the glasses

[grouch]

I've got an Ocianic 90 bought brand new and bottom is tempered.

Hmm... If it is Oceanic you could be in luck. As far as I can recall Oceanic didnt use tempered glass on the sides, and for the most part not on the bottom. But, that is not for sure.

[TPinner@saltyfishaquariums]

Yeah that is the problem. Oceanic made "most" of their aquariums without tempered glass on the bottom, but some are.



I've got an Ocianic 90 bought brand new and bottom is tempered.

[TPinner@saltyfishaquariums]

Here is directly from Oceanic.

http://www.oceanicsystems.com/education/faqs/
Is the glass in my aquarium tempered?

The bottom pane of glass on all Oceanic tanks (drilled or not) is tempered except for the Ultimate series and custom drilled tanks. The sides, fronts, and backs are not tempered. Please keep in mind that any drilling of the tank or alteration from its original manufactured state will void the warranty.

Hope this help.

Terry

[Bill S]

Hitting a tempered tank is NOT a good idea...

Some of you may recall that I worked in a LFS long before most of you were born (60s and 70s). In the early 70s, they first started making tempered tanks. We had a 55 set up in the front of the store (this was a huge store - over 1000 tanks of fish). Lenny, one of the owners kept a hammer under it. When a regular customer would come in, he'd say "hey, you want to see something cool?", and he'd show them the tank, and wack it with a hammer. Unfortunately, he didn't know that tempered glass takes only so much abuse... On Tuesday night (SW stock came in on Tuesday), our best customer came in. Obviously, Lenny wanted to show him the tank. Lenny hit the tank with a hammer, and it shattered in a million pieces, and 55 gallons of water gushed out, all over both of them. "Yeah, Lenny, that's COOL!".

[rrasco]

That's hilarious Bill.

Shane, just throw a WP60 in there.

Even if the bottom isn't tempered, I wouldn't drill it.

[ramsey]

Hitting a tempered tank is NOT a good idea...

Some of you may recall that I worked in a LFS long before most of you were born (60s and 70s). In the early 70s, they first started making tempered tanks. We had a 55 set up in the front of the store (this was a huge store - over 1000 tanks of fish). Lenny, one of the owners kept a hammer under it. When a regular customer would come in, he'd say "hey, you want to see something cool?", and he'd show them the tank, and wack it with a hammer. Unfortunately, he didn't know that tempered glass takes only so much abuse... On Tuesday night (SW stock came in on Tuesday), our best customer came in. Obviously, Lenny wanted to show him the tank. Lenny hit the tank with a hammer, and it shattered in a million pieces, and 55 gallons of water gushed out, all over both of them. "Yeah, Lenny, that's COOL!".

Haha! If only they had camera phones and YouTube back then. Awesome story!