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Seal A Leaking Cracked Plastic Resevoir Tank?

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post #1 of 13 (permalink) Old 01-25-2006, 02:56 PM - Thread Starter
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Hi All,

I have a leak in my tank, and I'm wondering the best way to fix it, and if that's a reasonable thing to do?

The tank is made out of plastic--I don't know what kind, but it's translucent, fairly stiff, and the tank is made from two pieces joined together. There's a crack where one of the barbs is molded in, and its leaking. (ThermalTake Bigwater drive bay tank).

It's new, and I could RMA it, but that would be a pain, since I'd probably have to return the whole kit--uninstall, ship, wait, etc.

Is is reasonable to fix the leak, and if so, what's the best way. It has to be on the outside of the tank, so pressure will tend to unseal it. I'm thinking some sort of epoxy, or silicone aquarium sealant? Something I can run out and pick up--like at an auto parts or hardware store--would be perfect.

I'd really appreciate your sage advice! Thanks in advance, I hope!

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post #2 of 13 (permalink) Old 01-25-2006, 03:00 PM
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empty the tank and seal it with silicon from the inside? (see through silicon - and an unnoticable thin layer)

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post #3 of 13 (permalink) Old 01-25-2006, 03:02 PM
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where is the crack? on the outside (dont reply if its a stupid question)

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post #4 of 13 (permalink) Old 01-25-2006, 03:04 PM
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Wheres the leak coming from? one of the valves? if it is then what u need to do is use a white plumbers tape wrap it around the valve and then screw it in that should seal it

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post #5 of 13 (permalink) Old 01-25-2006, 03:05 PM
 
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mine cracked so i went to k-mart and bought a $2 tube of two-part epoxy and used it worked perfect
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post #6 of 13 (permalink) Old 01-25-2006, 03:28 PM - Thread Starter
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empty the tank and seal it with silicon from the inside? (see through silicon - and an unnoticable thin layer)
I'd love to, but I don't have access to the inside of the crack.

The leak is not in the connection of the hose to the barb, but a fracture in the tank itself-- a hairline crack in the tank on either side of the barb.

Kinda like this: -O- (crack-barb-crack)

Epoxy sounds good, but I'm just wondering what might adhere well to this unknown plastic. It's slightly flexible and slippery feeling, so I'm thinking this is a worst case in terms of adhesion. So I'd like to get the right stuff.

Thanks for your replies! <fingers crossed>

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post #7 of 13 (permalink) Old 01-25-2006, 03:41 PM
 
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Quote:
Originally Posted by DrDeville
I'd love to, but I don't have access to the inside of the crack.

The leak is not in the connection of the hose to the barb, but a fracture in the tank itself-- a hairline crack in the tank on either side of the barb.

Kinda like this: -O- (crack-barb-crack)

Epoxy sounds good, but I'm just wondering what might adhere well to this unknown plastic. It's slightly flexible and slippery feeling, so I'm thinking this is a worst case in terms of adhesion. So I'd like to get the right stuff.

Thanks for your replies! <fingers crossed>
scuff it up a bit if your worried, my epoxy basically said it can glue gas soaked wood to oil covered metal lmao
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post #8 of 13 (permalink) Old 01-25-2006, 05:37 PM
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If I were you I would just RMA it. If it gets worse and you have to RMA it they won't take it back if you've tried to fix it. No reason to void your warranty when you don't know if it can be fixed for good.

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post #9 of 13 (permalink) Old 01-25-2006, 05:42 PM
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If you are careful try modle glue, it will fuse the plastic back together if the glue works with acrilic, if not try PVC cement, some of thoese work with acrilic.

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post #10 of 13 (permalink) Old 01-25-2006, 07:25 PM - Thread Starter
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Quote:
Originally Posted by Snerp
If I were you I would just RMA it. If it gets worse and you have to RMA it they won't take it back if you've tried to fix it. No reason to void your warranty when you don't know if it can be fixed for good.




Sage advice, which I will heed.

I had similar thoughts while I was jogging--Why mess around when it might leak later?
Better to take a delay, and get a good one.
ThermalTake got back to me within 12 hours, which is reassuring.

Thanks all, for your help!

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