CO2 reactor on inlet side ?
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Old 05-01-2013, 06:06 AM   #1
Leebee
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CO2 reactor on inlet side ?


I am thinking of building a Griggs style co2 reactor to replace the inline diffuser that I use now. The reason is because of the micro bubbles in the tank that get annoying. I have done a bit of reading, and I am amazed that such a reactor is not really available commercially. So it looks like I will have to build one of my own. The main complaint the people have is that this reactor can slow the flow down. I can only assume this has something to do with the extra large volume of water in the expansion chamber. My question is, can the reactor be on the inlet side. I would think that this would work better, as it is on the suction side(lower pressure?), and also it has larger diameter hoses. I donít know of any down side, assuming that all the co2 dissolves before the impeller. Not sure if the extra co2 in the water can affect the nitrifying bacteria. Anyway, I would love to hear peoples opinions.
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Old 05-01-2013, 06:42 AM   #2
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The extra co2 in the water won't hurt the bacteria in the filter - but extra air getting into the cannister filter will at least make it more noisy, at worst it will shorten the lifespan of the filter motor. Some may argue that the impeller blades in the filter will help chop up any co2 that make it out of the reactor, and they would be correct, but the above still applies.
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Old 05-01-2013, 07:12 AM   #3
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Default CO2 reactor on inlet side ?

You can search for 'co2 reactor on amazon. It only costs $20. Why build one.
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Old 05-01-2013, 07:34 PM   #4
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I have been using my Griggs reactor on the inlet side of my Marineland C-220 for about 6 months. No problems to report here.
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Old 05-01-2013, 07:47 PM   #5
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Putting it on the input side will decrease flow just as much as if you put it on the outlet side. Closed system. I would put it on the outlet side due to potential filter damage from bubbles.
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Old 05-01-2013, 09:45 PM   #6
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Quote:
Originally Posted by Daleo View Post
Putting it on the input side will decrease flow just as much as if you put it on the outlet side. Closed system. I would put it on the outlet side due to potential filter damage from bubbles.
With a properly working reactor there's no more danger of filter damage from bubbles than there would be from using a diffuser or pearling plants. There shouldn't be any decrease in flow on the input side unless you decide to make a reactor that has a smaller diameter than your tubing.

Quote:
Originally Posted by WheeledGoat View Post
The extra co2 in the water won't hurt the bacteria in the filter - but extra air getting into the cannister filter will at least make it more noisy, at worst it will shorten the lifespan of the filter motor. Some may argue that the impeller blades in the filter will help chop up any co2 that make it out of the reactor, and they would be correct, but the above still applies.
A sturdier, better made reactor customized for your particular application for the same or less money is one reason and another would be the satisfaction/enjoyment that some people get from building it themselves.

Last edited by Darkblade48; 05-18-2013 at 11:40 AM.. Reason: Please use the edit function for back to back posts to keep threads cleaner
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Old 05-02-2013, 12:09 AM   #7
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I dislike the idea of a reactor on the inlet side because over time, detritus will accumulate in it. I'd rather have filtered water going through it to reduce maintenance. It's bad enough cleaning the canister without adding more work to it.
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Old 05-02-2013, 05:57 AM   #8
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Quote:
Originally Posted by Ozymandius View Post
I dislike the idea of a reactor on the inlet side because over time, detritus will accumulate in it. I'd rather have filtered water going through it to reduce maintenance. It's bad enough cleaning the canister without adding more work to it.
The water would go from top to bottom, how can detritus build up?

I am going to go with this reactor first, it's not much money. If it's no good I might build one of the Griggs type.
http://www.istaproducts.com/details+.../products/226/
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Old 05-02-2013, 06:32 PM   #9
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Quote:
Originally Posted by Ozymandius View Post
I dislike the idea of a reactor on the inlet side because over time, detritus will accumulate in it. I'd rather have filtered water going through it to reduce maintenance. It's bad enough cleaning the canister without adding more work to it.
I get gunk buildup in out outlet tube just as much as my inlet tube.
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Old 05-18-2013, 05:46 AM   #10
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The reactor I bought was rubish, way too noisy. Gone back to the inline unit, no noise now, but lots of micro bubbles.
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