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post #1 of 8 (permalink) Old 12-17-2005, 11:34 PM Thread Starter
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just had a thought

We are all trying to find good ways to diffuse our diy co2 recipes with diy contraptions, but i just had a thought and I'm sure it's been dicussed, but hadn't seen it. There is an air intake tube on the millenium filters.....has anyone tried just jamming their co2 airlines into that hole and letting the prop shred them that way? I see their could be some kind of a siphon risk, but would a check valve solve that? Just a thought.....
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post #2 of 8 (permalink) Old 12-18-2005, 01:19 AM
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Yep, been done and discussed.

If the filter's water intake gets clogged, and the filter is strong enough, a direct connection to the filter's air intake can suck yeast mixture out. Especially if you're using a bottle than can collapse, like the plastic two-liter bottles often used. A check valve won't save you - it's nothing more than a one-way valve, and it's already set up to allow flow from CO2 bottle to filter.

The other possible risk is when the filter is off for unusually long periods; like during a power outage. CO2 still flows into the filter, and can displace the water. Some filters cannot restart when they're full of air. Running dry can overheat the filter and cause excessive wear.
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post #3 of 8 (permalink) Old 12-18-2005, 01:53 AM
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Wear and or break and cause excessive swearing. Side effects are generally mild and may include biting of tounge, kicking of filter, and yelling at an old stray cat named Buba. Hehe. I know if i would try it, I would break something. If you decide to do it, tell us if it works.
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post #4 of 8 (permalink) Old 12-18-2005, 02:05 AM Thread Starter
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well, nuff said. I guess that's out. Thanks for the help. I am trying to find a good diffuser though. I had a hagen ladder, but had such bad luck with the reactor that I scrapped the whole thing. I tried everything, I even tried wrapping the reactor with a heating pad, wasn't sure if the reactor was too cold. I am going to give it another try and go with the jello recipe though, been reading a little about it. maybe I'll go get another hagen setup just for the ladder. You know with a sheet of plexiglass from HomeDepot and some goop, I think I could make my own.

I would rather go pressurized, but my wife thinks I spend too much on the fish cage anyway. Which is funny, because I was given the tank, diy'd a 2 bulb odno light setup, and bought some flourite and plants.... less than a 100 bucks. So I guess if I run some line from a coke bottle into the tank, it will go unoticed, and I won't get griped out. haha.

Maybe I will just have to build a stand with locking doors on it and buy a pressurized set up, and just leave the doors locked so she will never know what's under there...... mmmwwwwooooohahahhahaha!!! Sorry for the random thoughts!
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post #5 of 8 (permalink) Old 12-18-2005, 02:18 AM
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The heating pad reminds me of an idea I had.

Wrap a heating pad around the DIY bottle, hook it up through a relay to a pH controller. World's first CO2-level controlled DIY?

Of course, if you can afford the pH controller, you can generally afford pressurized..
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post #6 of 8 (permalink) Old 12-18-2005, 02:36 AM Thread Starter
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I guess I'll give it a whirl

haha j/k
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post #7 of 8 (permalink) Old 12-18-2005, 03:57 AM
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I used DIY co2 with a duetto 50 just dandy, although be forewarned, i did run into the yeast issue. The solution? Just not having the tubing in your co2 bottle IN the yeast mixture.

10gal / Bleeding heart tetras, angel & silver hatchets / Filstar XP2 / 8wpg PC / 2.5lbs of Co2 / Hydor inline
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post #8 of 8 (permalink) Old 12-18-2005, 08:27 PM Thread Starter
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thanks for the input, I think I'm just going to stick a power head on the end of a gravel cleaner and drill a hole in the side for the co2 hose and stuff the bottom with sponge. I bought a piece of drift wood that I might be able to hide most of it with.
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