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Old 03-06-2004, 08:32 PM   #1
jcgd
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With DIY co2 what kind of silicone should you use to seal the hole in the bottle cap.
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Old 03-06-2004, 09:49 PM   #2
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something without any anti-fungal or anti-mold. If it kills those, it kills fish too. If you get the right fit, and a smooth hole, you might not need sealant even.
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Old 03-07-2004, 01:30 AM   #3
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Can you use tiny bulkhead thingies? But for airline tubing? And where would I find these?
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Old 03-07-2004, 01:34 AM   #4
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Basically whatever works for you is what you should use I know it's not much help, but the truth is that there are so many ways to skin a cat.
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Old 03-07-2004, 03:50 AM   #5
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the bulkhead things are here...
http://www2.towerhobbies.com/cgi-bin...=&I=LXG849

I use Liquid Nails, from the hardware store, as aquarium silicone just doesn't take any knocking about. I only use the Liquid nails on the outside of the bottle, not the inside, for I have no idea if it is fish safe.
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Old 03-07-2004, 05:41 AM   #6
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How woudl the silicone hurt the fish if it does not come in contact with it? Can the fumes kill fish?
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Old 03-07-2004, 02:50 PM   #7
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When I used aquarium silicone, I would put it ont he inside and outside of the bottle cap, for it didn't hold very well. I would let it dry completely as the directions say to do. I suppose the fumes are bad, it does smell a lot. At least until it is dry.

When I use the Liquid Nails, I use it on the outside of the bottle cap, it holds, even when used on a cap that is under pressure and leaking.
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Old 03-07-2004, 06:04 PM   #8
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Silicone will not adhere to the plastic on soda bottle caps. I've used epoxy with good results or just drill the hole slightly smaller than the airline and you won't need any sealer.
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Old 03-07-2004, 09:22 PM   #9
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A hot glue gun works good. On one of mine I used hot glue and on the other I just made a hole that was smaller than the hose and pulled the hose through using a pair of plyers. I was planning on hot gluing it but I couldn't find the gun.
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Old 03-07-2004, 11:13 PM   #10
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Thats a good idea.

Thanks
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Old 03-19-2004, 03:53 AM   #11
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I used rigid tubing, It works!!!!!!
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Old 04-10-2004, 03:58 AM   #12
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does the tubing just go into a reactor strait or can i put a little bubble stone in the syphon to seperate the bubbles better insid the chamber... and what kind of foam did u use...?
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Old 04-10-2004, 04:01 AM   #13
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is there any way to make a mini reactor...?
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