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View Full Version : 20L-Front and rear glass bow a bit.


petesreef
02/22/2009, 03:41 PM
Just wondering if anyone has taken the rim off an AGA 20L before. The front and rear panels have a tiny bit of bow in them. If it were to leak/break, would it suddenly explode apart or pull away from the silicone and leak first. Is it a big deal? Should I brace the middle??

davenia7
02/22/2009, 06:16 PM
I'd say it could go either way... would just depend on it's mood.

petesreef
02/22/2009, 07:09 PM
It's a total of 1/8" of bow. So assuming 1/16" on the front payne and the same on the rear. Do most glass tanks bow??

davenia7
02/22/2009, 07:15 PM
If you pull the rims, it's pretty common. The reasons for the rims on the way they are designed to keep everything square.
Tanks that are designed rimless are made of thicker glass meaning the keep themselves square and don't require rims to do so. I think your current situation would worry the heck out of me... but an exploding tank is one of my biggest fears...

MikePowell
02/22/2009, 08:50 PM
While it is common for glass to have some "flex" it would not warn you by a crack or small leak but an explosion. I would brace the tank but drain the water first; otherwise you will still have the stress present in the glass.

2_zoa
02/22/2009, 10:16 PM
Well,

I would assume you want a more clean look to the tank. So did I. I removed the upper trim on my 20L. I also noticed the bow in the panels. So I silicon ed in a piece for strength. I think I still kept the clean look, and still accessible. I have gone much farther with the strengthening but this would be all you had to do to sleep soundly IMO.

Put one front and back,
http://i385.photobucket.com/albums/oo300/pentair/MVC-058F-1.jpg

I think they look really good without the upper trim.
http://i385.photobucket.com/albums/oo300/pentair/MVC-053F.jpg

MikePowell
02/23/2009, 05:41 AM
Why do you have three or four drains?

java
02/23/2009, 01:48 PM
3 drains one return. its bean animals design. for safty if one or 2 gets clogged.

2_zoa
02/23/2009, 07:09 PM
Bingo^^^^^^

LooseHip
02/24/2009, 12:30 AM
Without a center brace, the trim provides no support to the tank. My 40 breeder had an 1/8" of deflection with the trim intact. Without the trim it did the same. My 40 breeder had no center brace, the trim on that tank was there for decoration, and to hide the sloppy finish job on the glass and silicone..

one of my other friends had a 20 long that had no brace and had no problem



<a href=showthread.php?s=&postid=14458200#post14458200 target=_blank>Originally posted</a> by davenia7
If you pull the rims, it's pretty common. The reasons for the rims on the way they are designed to keep everything square.
Tanks that are designed rimless are made of thicker glass meaning the keep themselves square and don't require rims to do so. I think your current situation would worry the heck out of me... but an exploding tank is one of my biggest fears...