CO2 tubing into the inline DIY Reactor - The Planted Tank Forum
 
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post #1 of 5 (permalink) Old 03-08-2005, 08:09 AM Thread Starter
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Question CO2 tubing into the inline DIY Reactor

I have the rigid black tubing that aquabotanic sold me. On my first DIY reactor I had a hard time (impossible) finding a plastic 1/8 barbed by 1/2 MPT. Not knowing any better, I finally found a 1/8 barbed brass one and had to buy a 1/4 to 1/2 brass reducer too. Now, I have read that brass has copper and lead in it and that I should avoid its use, although I haven't ever lost any inverts or fish (or plants) that I know of. The amano shrimp are fine when they show up. Just the same, are there any other options here? Can I just drill a hole and silicone or epoxy this tubing in place. That would be cheaper and stay in the KISS routine?

Another option is to use the more flexible stuff Aquar. Plants sold me, but it seems of less durability. And I already paid for some nice (and very small) clippard check valves which fit nice and tight into the AB hose just fine but feel too loose on Aquarium Plants' soft CO2 hose. Can this AB hose slip over a 1/4 barb x 1/2 MPT (white plastic type) if I heat the hose in near boiling water? Any other suggestions? Thanks! bob





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......

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post #2 of 5 (permalink) Old 03-09-2005, 06:07 AM Thread Starter
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Well, I found a 1/8 x 1/4 plastic barb today so I'll saw off the 1/4 end and drill a hole and silicone or epoxy it in. Should work fine. Pretty much using a version of James Hoftiezer's plan. I had seen it before, but thanks scolley for posting it again. bob





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
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post #3 of 5 (permalink) Old 03-09-2005, 01:40 PM
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Brass is actually considered good for CO2, somewhere there is a thread about this in the context of it's use in CO2 regulators. I use brass barbs 1/8"NPT X 1/8" HB, drill the appropriate size hole, tap it and you're done., I have never heard of anyone experiencing a negative effect from their use. CO2 is considered inert unless mixed with water. It's pretty much SOP from what I can see. Plastic or nylon barbs are much weaker and don't hold up as well in my experience

I
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post #4 of 5 (permalink) Old 03-10-2005, 03:15 AM Thread Starter
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This is going into a reactor where the water column is constantly running and some of the brass will be always in contact with the flowing water. I'm not talking about in context of the regulator where there is no water at all. Were you referring to using a brass nipple on the reactor? Because if its O.K. I would definately prefer the strength of a brass nipple to that of a siliconing in a plastic one, even if it costs a bit more. Thanks, bob





Three Tanks...Eheim 2128 & XP3-90G, Eheim 2128-65G, Eheim 2232-25G.... Tek 4x54 watt T5-90G, Aqualight 96watt PC 65G low tech, 65 watt Aqualight-25G.... Hydors-90G & 65G ... Flourite in 90, 65, & 25 Gallons, .... Auto Water Change/Auto dosing on 90 & 65 gallon..... AGA member......
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post #5 of 5 (permalink) Old 03-10-2005, 01:05 PM
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Yes I am. You should be fine, I've never had any problems and I haven't heard of any from anyone else.


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