change size barr on a AM 1000 CO2 Reactor

inkslinger

Guru Class Expert
Dec 15, 2007
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Has any done this before , I would like to change the 1/2 inch bars and tap it out to 3/4 or 1 inch. Any pic would help also Thanks.
 

Tom Barr

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Jan 23, 2005
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Then you have blow out of the bubbles, you'd need new screw in caps with larger pipe inlets.

Simpler to DIY a reactor tube, add the bleed valve, clear PCV, make the in/out any size you wish as well as the reactor tube diameter/length.

It's hardly a high tech device.

Regards,
Tom Barr
 

dapellegrini

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Oct 17, 2006
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Ya I spent a lot of time and energy looking to mod mine to a 3/4" barb - you would think Aqua Medic would make a simple piece... But they don't and the threading on the barb (that you can unscrew from the top) is metric.

If you haven't already bought one, I agree with Tom - just build your own. If you have - the easiest thing to do is just get some 1/2-3/4 barb adapters.
 

Gerryd

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Sep 23, 2007
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Hi,

Here are a couple of threads on these DIY reactors that you can build to your own cofiguration and specifications.

http://www.barrreport.com/articles/3444-dual-venturi-diy-external-co2-reactor.html?highlight=reactor

http://www.barrreport.com/articles/...-great-yeast-co2-users.html?highlight=reactor

I agree that building your own is your best bet. Depends on what size/config of your setup.

I used an AM1000 as is in my 180 for a while and it did ok. Just my setup was not good for this and it underperformed for me as I think I overwhelmed it:)

you would think Aqua Medic would make a simple piece...

Yes, you would wouldn't you? Do they really think one size fits all?

Hope this helps.
 

dapellegrini

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Looks like he did the only thing you can do with it - drilled out the threading on the top and bottom and fitted the new holes with bulkheads.

Great links BTW
 

inkslinger

Guru Class Expert
Dec 15, 2007
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This is what auaman3000 said to me :
{I drilled out the 1/2" barbs in each end cap of the AM 1000, then tapped them for the PVC fittings. I then used PVC solvent to glue the end caps and PVC fittings together.}
So it must be just the cap on each end that he tap out and attach the bulkhead to them. But over all size would this work with a higher flow rate of over 1190gph? or should a larger size {3x24} be use . The one I built has a 3/4 bulkhead witch I could use ether a 3/4 x 1/2 , 3/4 x 5/8 or just 3/4.
 

cggorman

Prolific Poster
May 9, 2009
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I reworked my AM1000 to accept CPVC 1/2 MPT adapters. Just cut off the barbs and drill/tap to the correct thread. Those AM1000 threaded endcaps are pretty thick. They don't even need solvent or sealant. Using a pipe thread and teflon tape, mine are completely leak free and completely re-buildable.

In addition to the threaded adapter, I included a pair of elbows on each end to correct what I considered to be poor hose routing for a reactor hung on the tank rim. Mine isn't visible above the light strip and doesn't put any kinks or stress on the hose.

Give me a few hours and I'll put together a drawing. Getting a camera behind there is impossible.
 

Tom Barr

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The AM 1000 is actually an old design that was Dupla's old s reactor.

difference?

70$ vs 150-200$

Regards,
Tom Barr
 

cggorman

Prolific Poster
May 9, 2009
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Here's a rough sketch of what I've done. It hangs from the rim in the pictured orientation and top-most piping is about level with the rim top.
 

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