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 12-23-2010, 04:50 PM   #1
Aquarium Advice Newbie
 
Join Date: Dec 2010
Location: Everett, Wa
Posts: 2
Acrylic Tank Cracks from vibration?

Has anyone had cracks form on the face of an acrylic tank from heavy vibration or earthquakes? I have a 100 gallon acrylic tank 60x18x22 that formed hundreds of horizontal cracks on the front face during 2 weeks of construction near by. The sewer in the street was replaced less than 30 feet away 15 feet deep they dug a hole and filled it with gravel packing it with a hydraulic impactor on a large escavator. Pictures fell off walls and items fell from tables and shelves and lights swung. The tank sloshed for 2 weeks off and on for hours at a time and cracks up to 1" long formed in vertical rows and patches (see attached pictures). The construction company admits to the heavy vibration, but tells me the cracks that formed in my tank are a coincidence and not caused by the vibration and shaking they do admit to. They told me this is crazing caused by having a 3/8 and not 1/2 inch thick tank? Has anyone ever had damage caused to a tank from earthquake like vibrations?
Attached Thumbnails
Click image for larger version

Name:	Cracked tank.jpg
Views:	84
Size:	104.9 KB
ID:	26554   Click image for larger version

Name:	B4 CRACKS (1).jpg
Views:	90
Size:	125.4 KB
ID:	26555  

__________________

__________________
100 Gallon Reef is offline   Reply With Quote
Old 12-23-2010, 08:43 PM   #2
Sliced Bread
 
neilanh's Avatar


 
Join Date: Dec 2006
Location: Northern Virginia
Posts: 8,482
Seems a little scary to me that you still have water in that tank
__________________

__________________
~Neilan
In the DC Metro Area? Check out GWAPA and WAMAS
neilanh is offline   Reply With Quote
Old 12-23-2010, 09:34 PM   #3
Aquarium Advice FINatic
 
Krypt's Avatar
 
Join Date: Jan 2010
Location: Holley, NY
Posts: 752
If the cracks did not appear until they began ground pounding, then it is definitely their fault. It doesn't matter what the thickness was. If the vibrations they admit to caused your tank to crack, I would definitely contact them again and ask them to replace it. If they do not, then there is always small claims court and home owners insurance.
__________________
"If your wife ever asks how much something was for your tank, just tell her you got it on sale and you had to have it! She'll understand"

-Chuck
Krypt is offline   Reply With Quote
Old 12-23-2010, 11:23 PM   #4
Aquarium Advice Freak
 
Join Date: Oct 2010
Location: Malaysia
Posts: 332
hohoho....scary2 with that crack and your tacnk thickness....
__________________
abdhalim2 is offline   Reply With Quote
Old 12-24-2010, 01:45 AM   #5
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
Seems to me you have a legitimate claim on the contractor's bond - too coincidental for those to show up in what appears to be a fairly well established tank. If they were doing work on the sewer, I'd contact the owner of the project (the City or Water District?) and fill them on the problem. Perhaps going through them instead of the contractor may help to get some action rather than blanket denial.

Have you contacted a LFS that also does tank work/commercial installations and maintenance, and see what their opinion is? Seems like that would be a good "unbiased" opinion to present to the contractor and project owner. Saltwater City in Bellevue and Barrier Reef Aquariums in Renton come to mind.
__________________
Kurt_Nelson is offline   Reply With Quote
Old 12-24-2010, 02:34 AM   #6
Aquarium Advice Newbie
 
Join Date: Dec 2010
Location: Everett, Wa
Posts: 2
Thanks all for your replies. I contacted the city and was referred to the contractor's claims manager who now stated they will pay for 1/2 the replacement cost but still thinks it was not caused by them? I gave him the contact information for the LFS who stated this damage is caused by the sloshing of the water causing stress cracks at the weakest point of the tank and is not crazing from age that is seen at the joints, bends, and tops. He replied there is nothing on the web stating damage to acrylic tanks can be caused by vibration. He stated he would pay to replace it if I had more information showing this could be caused by vibration. This is why I was asking for your help as the subject matter expects on this forum. Has anyone herd of this kind of damage.
__________________
100 Gallon Reef is offline   Reply With Quote
Old 12-24-2010, 03:28 AM   #7
Aquarium Advice Freak
 
Join Date: Oct 2010
Location: Malaysia
Posts: 332
maybe u could get some acrylic manufacturer/expertise advice...
__________________
abdhalim2 is offline   Reply With Quote
Old 12-25-2010, 01:36 AM   #8
Aquarium Advice Addict
 
Join Date: Aug 2006
Location: not here anymore
Posts: 5,338
100g reef... PM sent to you with contact info of a local acrylic tank fabricator. I'm thinking he can give you more technical info that you can present to the claims manager. I've never heard of damage like you're seeing, but water sloshing in the tank for a couple days isn't something that happens very often!
__________________
Kurt_Nelson is offline   Reply With Quote
Old 12-25-2010, 12:53 PM   #9
AA Team Emeritus
 
Join Date: Nov 2006
Posts: 3,462
Considering they were using a hydraulic impactor, it doesn't surprise me regardless of how well made the tank is. You may have luck contacting the manufacturer, but I don't think this would qualify as poor manufacturing due to outside interference of integrity.
__________________

Innovator is offline   Reply With Quote
Reply

Tags
acrylic, crack, tan

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
Acrylic Sump Cracks Normal? bjbass Freshwater & Brackish - Getting Started 14 12-07-2010 12:01 PM
acrylic tank with tiny cracks smilla4 General Hardware/Equipment Discussion 2 04-22-2006 06:12 AM
Vibration aravindk General Hardware/Equipment Discussion 2 02-19-2006 11:20 PM
cracks in acrylic DepotFish Freshwater & Brackish - General Discussion 2 11-10-2005 10:09 PM
Cracks in acrylic tank rhymeswithbear Freshwater & Brackish - General Discussion 3 08-19-2005 11:03 PM







» Photo Contest Winners








Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -4. The time now is 01:50 AM.


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