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Jerrick 
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 Topic: Drilling and CRACK
Posted: May 06 2011 at 2:18pm |
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I just drilled the back of my 36 gallon bowfront that I am going to use for a Frag tank.......well there is a crack that is about an inch long starting at the hole..........I put in the bulk head and as I tightened it I heard a bit of a cracking noise and the crack grew a little........Do You think I could silicone over the crack and it be okay???? It is at the top of the back of the tank so not a ton of pressure on it???? or do I need to get a new piece of glass cut for the back????????
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Ryan Thompson
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Posted: May 06 2011 at 2:25pm |
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New glass IMO. There will still be pressure on the glass and the last thing you wanted is a flooded room and dead coral everywhere.
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jwoo
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Posted: May 06 2011 at 2:34pm |
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I concur with Ryan. If it were me I wouldn't even mess around with it. Not worth the potential issues down the road.
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None at the moment
Soon: 72 Gallon Bowfront
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Dion Richins
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Posted: May 06 2011 at 2:36pm |
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Dang it!!! I do agree with Ryan. I would replace it.
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Ryan Thompson
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Posted: May 06 2011 at 2:45pm |
Crap! Dion and Justin agree with me....
I better go start some drama somewhere.  |
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Jerrick
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Posted: May 06 2011 at 3:32pm |
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Crap I thought that is what everyone would say...
I filled with water and everything looks okay???? will let it sit a few days and see how it goes.
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bik3rinblack
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Posted: May 06 2011 at 3:42pm |
 Jerrick wrote:
Crap I thought that is what everyone would say...I filled with water and everything looks okay????  will let it sit a few days and see how it goes. |
so lets try something out here, i want you to bump into the tank, like you would be working over it or a kid would smack and lets see what happens, i would drain it and get the glass, i would not even temp fate, you are asking for an issue to come up!
let me know what happens, with what i just said! lol
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Matt Snow [email protected]1-801-413-7844 125 fresh aggressive 90 salt fish only 20 aggressive fresh 30 red ear slider
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Corey Price
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Posted: May 06 2011 at 3:58pm |
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Accident/flood waiting to happen if you've filled it. Sorry to hear that, but it happens.
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ejcatmul
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Posted: May 06 2011 at 5:53pm |
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Connect a rigid PVC to the bulkhead and move it a little and see what happens?
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"Noob"
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Jerrick
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Posted: May 06 2011 at 7:31pm |
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Connected pipe and moved it and i could see the crack flexing a little.....the angle of light shifts when I move it back and forth but not spreading......REALLY don't want to tear apart the tank I would most likely make a mess of it and the seems would explode or something knowing my luck.....grrrrrrrr.......what to do......i might leave water in it for a week and see what happens........
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Dion Richins
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Posted: May 06 2011 at 8:10pm |
OK so I get to be the one to say it.........WTH!!! The crack flexes????? Are you married???? Is there any one there that is going to kick your butt when this thing fails at 2am and your fish, water and maybe more is sitting on the floor.
Do you realize how much water 36g is????????? How much damage to the floor, stand, room below is going to suffer????
The glass is broke. It isn't going to matter how much I want it to work for you....It isn't. It might hold water for an hour, a day, heck maybe even a week. BUT IT WILL FAIL!!! Seriously do your self a favor and get a new tank or replace the glass. Its shot.
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downhill_biker
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Posted: May 06 2011 at 8:58pm |
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I can't agree with Dion more. Stop saying, "We'll see what happens." It may not fail for a few months, by that time you are done waiting to see what happens. Get new glass. You can probably get that back piece for a whole lot less than you'd think.
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Make sure you post your best pictures every month in our POTM forum.
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bik3rinblack
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Posted: May 06 2011 at 9:04pm |
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I agree with dion and downhill biker, fix it or pay the price straight up
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Matt Snow [email protected]1-801-413-7844 125 fresh aggressive 90 salt fish only 20 aggressive fresh 30 red ear slider
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kody72
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Posted: May 06 2011 at 10:37pm |
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Can you maybe drill the hole bigger for a big bulkhead
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Corey Price
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Posted: May 06 2011 at 11:30pm |
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I wouldn't put any more stress on it. If it does fail, then you're REALLY going to have an emergency. These things happen, like everyone said, at 2 am when you least expect it.
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Corey Price
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Posted: May 06 2011 at 11:31pm |
kody72 wrote:
Can you maybe drill the hole bigger for a big bulkhead |
Um, I wouldn't recommend that. Drilling again will definitely make it worse.
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Jerrick
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Posted: May 07 2011 at 11:38am |
Would it be worth tearing apart and re-silicone a new back piece.....or just buy a new tank?.....How hard is it to take the top and bottom plastic rims off, cut out the old glass and put in new? Anyone done this before have any advice?
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Mark Peterson
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Posted: May 07 2011 at 2:18pm |
You have to know glass. Once it has a crack, IT WILL CRACK MORE. IT WILL FAIL. Just a frag tank? Why drill it? Anything will work for a frag tank. Again I ask, Why drill it  The wise advice here is free. Not following the advice is costly.
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Jerrick
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Posted: May 07 2011 at 2:32pm |
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I was going to have it connected to my main display tank and didn't want to have a siphon to the sump.....better suggestion?
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BobC63
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Posted: May 07 2011 at 2:39pm |
There is a guy in Ogden w/ a 25 gal tank for $30 - probably easier to just replace the tank:
And, not sure if this is the case, but always remember that you should treat tightening a bulkhead like tightening an oil filter on your car.
Hand tighten, then 1/4 turn with a wrench. Only try more pressure if you fill it and it leaks.
Don't keep tightenening until you can't turn the wrench anymore. That is too tight - and will stress the bulkhead gasket, and possibly crack the glass.
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- My Current Tank: 65g Starfire (sitting empty for 2+ years) -
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