Go Back   Aquarium Advice - Aquarium Forum Community > Saltwater and Reef > Saltwater Reef Aquaria
Click Here to Login

Join Aquarium Advice Today
Reply
 
Thread Tools Search this Thread Display Modes
Please support our sponsors and let them know you heard about them on AquariumAdvice.com
 
Old 07-13-2014, 04:44 PM   #11
Aquarium Advice Activist
 
Clownfish25's Avatar
 
Join Date: Feb 2012
Posts: 184
Quote:
Originally Posted by PB_Smith View Post
mmmm, no, siliconing just around the edges is destined to fail in the future.

The safest way to do it would cut a piece of THICK TEMPERED glass that is at least 1" bigger on all sides than the hole, if possible.
Clean all surfaces and then lay a nice coating, 1/8"-1/4" thick of silicone over the entire patch piece and press it into place. There should be plenty to squish out the sides and down to fill the hole, which is what you want. You can easily see if there are any gaps and just smoosh the glass patch around to deal with them. Then smooth the silicone on the underside of the tank so it fills the hole completely like a plug. If you want you could put another piece of glass underneath as well.
Have used this technique a few times with no negative results.
Patched like that it should last the life of the tank.
Ok so i need to cover the entire surface of the glass and stick it down over the hole? Then silicone the edges and silicone the hole? That will last a long time and not crack with the sand and rock over it plus water weight.

Sent from my LG-D959 using Aquarium Advice mobile app
__________________

__________________
Clownfish25 is offline   Reply With Quote
Old 07-13-2014, 04:49 PM   #12
Aquarium Advice Activist
 
Clownfish25's Avatar
 
Join Date: Feb 2012
Posts: 184
Quote:
Originally Posted by MICEY View Post
I would put a bulkhead in with a ball valve on it and connect a hose to it
you could then drain water out of the bottom of the tank where the worst water is when doing water changes
I like the idea thank you but i have an easier water change system. Plus i will have sand covering that area in the tank.

Sent from my LG-D959 using Aquarium Advice mobile app
__________________

__________________
Clownfish25 is offline   Reply With Quote
Old 07-13-2014, 05:12 PM   #13
Aquarium Advice Addict

POTM Champion
 
Join Date: Apr 2014
Location: Southern Cali
Posts: 1,734
Quote:
Originally Posted by Clownfish25 View Post
Ok so i need to cover the entire surface of the glass and stick it down over the hole? Then silicone the edges and silicone the hole? That will last a long time and not crack with the sand and rock over it plus water weight.

Sent from my LG-D959 using Aquarium Advice mobile app
If you coat the entire side of the patch piece you should not have to worry about silicone the edges as the entire contact surface will be covered and excess will squish out the edges. Just smooth it up and over the patch. There should also be enough to more or less fill the hole, I just smooth it over for aesthetics and to be certain there are no gaps.
__________________
PB_Smith is offline   Reply With Quote
Old 07-13-2014, 07:00 PM   #14
Aquarium Advice Addict
 
mr_X's Avatar


 
Join Date: Apr 2008
Location: Fairless Hills, Pa.
Posts: 17,895
Send a message via MSN to mr_X
If the glass patch is the same thickness as the tank glass, it will withstand the same weight/pressure. I would use this, and not the bulkhead idea, bearing in mind that you never want to use those holes again. What about a closed loop? You could also use these for drains or returns. If the holes are there, might as well utilize them.....
__________________
thanks,
Doug
mr_X is offline   Reply With Quote
Old 07-13-2014, 08:57 PM   #15
come get me tang police!
 
jetajockey's Avatar


 
Join Date: Apr 2011
Location: In a swamp near you /Pensacola, FL
Posts: 12,047
Quote:
Originally Posted by PB_Smith View Post
mmmm, no, siliconing just around the edges is destined to fail in the future.

The safest way to do it would cut a piece of THICK TEMPERED glass that is at least 1" bigger on all sides than the hole, if possible.
Clean all surfaces and then lay a nice coating, 1/8"-1/4" thick of silicone over the entire patch piece and press it into place. There should be plenty to squish out the sides and down to fill the hole, which is what you want. You can easily see if there are any gaps and just smoosh the glass patch around to deal with them. Then smooth the silicone on the underside of the tank so it fills the hole completely like a plug. If you want you could put another piece of glass underneath as well.
Have used this technique a few times with no negative results.
Patched like that it should last the life of the tank.
How far in the future is it destined to fail, and why? I've got tanks 20+ years old done by this method that haven't leaked a drop yet. I even did this to 12 40b's several years ago and haven't had any issue with any of them. It even made it a little bit easier to remove the patch when one needed to be piped for an overflow.

It works on the same concept as siliconing two pieces of glass together to make the tank. You don't see people putting silicone on the ends of the tank glass and then 'smooshing' them together. I also suggest putting silicone in the underside of the tank to fill the hole, just extra insurance.

I'm sure it could work either way, but the 'smoosh' method seems to be more prone to error in that you'd have to make sure you get a good layer of silicone around the hole under the glass to ensure that it's sealed well.
__________________
Dont Forget to Join my FREE weekly Plant Giveaway.
Click Here!
jetajockey is offline   Reply With Quote
Old 07-13-2014, 09:38 PM   #16
Aquarium Advice Addict

POTM Champion
 
Join Date: Apr 2014
Location: Southern Cali
Posts: 1,734
Quote:
Originally Posted by jetajockey View Post
I'm sure it could work either way, but the 'smoosh' method seems to be more prone to error in that you'd have to make sure you get a good layer of silicone around the hole under the glass to ensure that it's sealed well.

by covering the entire patch with silicone and applying it on the INSIDE of the tank will ensure there are no leaks or gaps. If the entire patch is covered with silicone, how in the world could it be possible for it to not be sealed around the hole? Silicone is translucent and it would be very apparent if there were any gaps/voids in the silicone.

With just a bead of silicone around the edge of the patch it would be more prone to lifting and separating over time, plus you would have a blank space between the tank bottom and the patch, a possible cracking failure point for the patch.
The seams of an aquarium are two fold, a layer of silicone between the edges of the glass panels, this is primarily to bond the panels together,
second a bead/seam is applied to the inside gaps, that is for making it water tight.
You don't think I was saying to put it on the outside do you?
NEVER patch an aquarium from the outside, always patch it in a manner that the water pressure will help hold it tight against the glass.

I think maybe you are envisioning something different than what I tried to convey.

and actually putting silicone on the ends/edges of the glass panels and then smooshing them together is exactly how aquariums are made.
__________________
PB_Smith is offline   Reply With Quote
Old 07-13-2014, 10:53 PM   #17
Aquarium Advice Addict
 
crister13's Avatar
 
Join Date: Aug 2011
Location: Princeton, NJ
Posts: 3,473
I would just put a bulkhead in then PVC and cap the PVC. Don't see why or how that wouldn't work.


Sent from my iPhone using Aquarium Advice
__________________
crister13 is offline   Reply With Quote
Old 07-15-2014, 06:17 AM   #18
Aquarium Advice Activist
 
Clownfish25's Avatar
 
Join Date: Feb 2012
Posts: 184
Quote:
Originally Posted by crister13 View Post
I would just put a bulkhead in then PVC and cap the PVC. Don't see why or how that wouldn't work.


Sent from my iPhone using Aquarium Advice
I tried doing it this way but it started leaking 30 gallons in, mayber I over tightend the bulkhead? If I do get it to hold with just a bulkhead, is that going to last?

Sent from my LG-D959 using Aquarium Advice mobile app
__________________
Clownfish25 is offline   Reply With Quote
Old 07-15-2014, 10:54 AM   #19
come get me tang police!
 
jetajockey's Avatar


 
Join Date: Apr 2011
Location: In a swamp near you /Pensacola, FL
Posts: 12,047
Yes bulkhead work just fine. Its what you'd use if you piped the system as was originally intended.

Sent from Peabody's rabbit hole.
__________________
Dont Forget to Join my FREE weekly Plant Giveaway.
Click Here!
jetajockey is offline   Reply With Quote
Old 07-21-2014, 09:59 PM   #20
Aquarium Advice Activist
 
Clownfish25's Avatar
 
Join Date: Feb 2012
Posts: 184
Hey everyone thanks for the advice, I filled it about halfway. The two bulkheads were capped with pvc and were hand tightend. I had to get different rubberwashers which i had to by a couple bulkheads, but shes holding so far. Is there anything else for me to do? How long should the bulkheads last? I have also attached some pictures

Sent from my LG-D959 using Aquarium Advice mobile app
Attached Thumbnails
Click image for larger version

Name:	1405990649729.jpg
Views:	57
Size:	101.7 KB
ID:	243939   Click image for larger version

Name:	1405990697644.jpg
Views:	50
Size:	100.1 KB
ID:	243940  

Click image for larger version

Name:	1405990720526.jpg
Views:	46
Size:	109.7 KB
ID:	243941   Click image for larger version

Name:	1405990733570.jpg
Views:	39
Size:	103.4 KB
ID:	243942  

__________________

__________________
Clownfish25 is offline   Reply With Quote
Reply

Tags
hole, sea, seal

Please support our sponsors and let them know you heard about them on AquariumAdvice.com

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Would i need to seal a DIY holey rock made from hypertufa? Hholly General Hardware/Equipment Discussion 0 03-03-2012 09:42 PM
To seal or not to seal gfishguy56 Freshwater & Brackish - Coldwater, Native Fish & Ponds 3 07-22-2004 02:54 PM
DIY Tank Re-Seal Full Instructions Thaiboxer DIY Projects 7 04-02-2004 04:37 PM
Bulkhead seal question. pwilk20 Saltwater & Reef - Getting Started 1 02-17-2004 10:51 AM
Filter box with crack, can i use silicon sealant to seal it? jbahseng Freshwater & Brackish - General Discussion 8 02-13-2003 08:53 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 04:15 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.