Cracked Glass

  • Thread starter Thread starter H@rry
  • Start date Start date
  • Tagged users None

H@rry

Troll
View Badges
Joined
Aug 4, 2007
Messages
3,411
Reaction score
576
Location
Huntsville, AL
Rating - 0%
0   0   0
This is no longer an emergency but I want to post it here to ask for advice.

About 6 months ago I noticed a line of dried up water that had run down from the top corner of the end of one of my 180s. It had not reached the bottom before it dried up. When I looked at the top of the glass I discovered a small (maybe 10 mm) crack in the glass. Not knowing what to do I did nothing to see if it would not get any worse since it was not leaking.

Somewhat in denial I measured it every week and the crack was slowly advancing but not leaking except for a very small amount of salt creep directly on the crack. I was hoping that it would stop running but last week the crack has advanced to about 110 mm and I was dreading a catastrophic tank failure when the whole end glass would crack open. I drained it and started thinking about replacing the tank.

Yesterday I thought about making a gigantic patch on the end of the tank. Since the end glass is inside of the front and back glass, the edges of the front and back glass are flush with the surface of the cracked end glass. I wonder if I could get a piece of glass the same size as the end that would overlap the front and back glass edges, several tubes of silicone and plaster it on the end of the tank?

I welcome all comments. Hopefully someone with a lot more experience with this will advise me what I should do. The yellow line if roughly where the crack is.

Inked20200106_155308_LI.jpg
 
That is how we used to do it in the old days when tanks were comparatively expensive, most people don't recommend it now though. You would want to do it from the inside though and also make the crack finish running to an edge before making the repair
 
Although overlapping should work, it is an alternative , not a long term solution, sort of placing a bandaid over a heavy wound. As long as you are acquiring glass, I would replace the entire piece and Using aquarium sealant such as all glass or Aqueon, silicone in the new section and you then have new glass and new seals.
It may appear complicated but easy and you will learn about tank construction along the way
 

IF YOU HAD TO TAKE A REEFING EXAM, WOULD YOU PASS?

  • Yes!

    Votes: 32 45.7%
  • Not yet, but I have one that I want to buy in mind!

    Votes: 9 12.9%
  • No.

    Votes: 26 37.1%
  • Other (please explain).

    Votes: 3 4.3%
Back
Top