Fire extinguisher tank

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Gun Freak
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Mon Jul 19, 2010 3:15 pm

Really I don't mind waiting a few days, but I do have an aquarium air pump that I can use. The only problem is I don't think it will fit through a 1/2" hole :) Oh well, I don't mind waiting. I just don't want this tank to die so soon.
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Gun Freak
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Tue Jul 20, 2010 5:36 pm

Ok so I put more JB weld on and tested it earlier and there is still one small leak. I think I'll just keep putting more on until it is fixed. It is only leaking on one spot through a tiny hole, so it should be easy to fix. I tested it as 100 psi for about 15 minutes and it lost 60 psi out the hole, so it needs patching. Updates tomorrow...
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Crna Legija
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Wed Jul 21, 2010 1:43 am

connect it to a vacuum cleaner then put epoxy on the leak, works 60% of the time, every time :D
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Gun Freak
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Wed Jul 21, 2010 9:08 am

Ok I'll try that when I go to repair it today.
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Mr.Sandman
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Wed Jul 21, 2010 11:39 am

Gun Freak wrote:Ok I'll try that when I go to repair it today.
You should really buy some lower viscosity type epoxy, jb weld doesnt flow very well compared to others such as araldite or marine epoxy. If you have any hobby stores near you, pay them a visit, unless they are hobbytown usa, they should have good prices on 9oz bottles.
Yeah, it's that important.
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Gun Freak
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Wed Jul 21, 2010 11:45 am

Ok, I might, the new JB is curing now.
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Clarke
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Thu Jul 22, 2010 6:49 am

You should make a moisture bleed valve on the bottom, like that of a compressor to let moisture out if it bulids up over time.
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Thu Jul 22, 2010 9:08 am

I'm not following... could you explain? I'm testing the new tank today btw.
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Thu Jul 22, 2010 9:20 am

he meant that it might be a good idea to install a valve for draining the tank... the moisture will build up on the internal surface of the tank...

that's why I installed a home-made oil/water separator on my fridge compressor
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Gun Freak
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Thu Jul 22, 2010 9:26 am

Is that a valve you buy or do you make it?
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POLAND_SPUD
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Thu Jul 22, 2010 9:54 am

there are such valves for shop compressors but you might as well use just any ball valve (or any other valve) that you have... the valve has to be installed at the very bottom of the tank

if you have just one port on the tank then you might as well mount the tank vertically and in bottom up position. In this way water that condensates on the internal surface of the tank will leave it via this port.

Of course it isn't the best solution becasue water goes to whatever you have attached to the tank.
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Gun Freak
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Thu Jul 22, 2010 10:16 am

Installing a port on the bottom of the tank would require welding... which I can't do.
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ramses
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Thu Jul 22, 2010 10:29 am

Could you drill, tap, and JB weld?
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Gun Freak
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Thu Jul 22, 2010 10:38 am

Yes, but the walls on my fire extinguisher aren't that thick... or at least I don't think, and I don't want to take a chance finding out.
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ramses
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Thu Jul 22, 2010 10:44 am

Gun Freak wrote:Yes, but the walls on my fire extinguisher aren't that thick... or at least I don't think, and I don't want to take a chance finding out.
True.

Every so often, you could charge it up, tip it so all the water goes to the female QC, and insert a male QC with nothing attached. That should get most of the water out.
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