Yet another CO2 pump question - The Planted Tank Forum
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post #1 of 17 (permalink) Old 11-14-2006, 01:50 AM Thread Starter
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Yet another CO2 pump question

I have a sump under the tak and water are pumped from sump back to tank by a Dana MagDrive 9.5

Questions:
1. If I connection CO2 tube to the inlet of the Pump. CO2 would travel through the propoller and about 5 ft of pipe, would it be enough to diffuse the CO2?

2. Would the air bubbles (CO2) be harmful to the pump?

Thanks for helping.
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post #2 of 17 (permalink) Old 11-14-2006, 07:37 AM
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Quote:
Originally Posted by Just40Fun View Post
I have a sump under the tak and water are pumped from sump back to tank by a Dana MagDrive 9.5

Questions:
1. If I connection CO2 tube to the inlet of the Pump. CO2 would travel through the propoller and about 5 ft of pipe, would it be enough to diffuse the CO2?

2. Would the air bubbles (CO2) be harmful to the pump?

Thanks for helping.
Make or buy a powered reactor, it will work a lot better. MagDrives make a lot of noise passing gas........DC
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post #3 of 17 (permalink) Old 11-14-2006, 11:31 AM
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I tried MAG 2 for that purpose ,as DC say it had a hard time letting co2 go through(passing gas )and made a Lot of noise.
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post #4 of 17 (permalink) Old 11-14-2006, 12:32 PM
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MagDrives make a lot of noise passing gas........DC


OK, I just found this really funny.

Walter

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post #5 of 17 (permalink) Old 11-15-2006, 02:24 AM Thread Starter
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thanks guys, on second thought. I may run a Magnum350 in addition to the wet/dry. I can use the 350 to enhance mechanical filtration and to run the UV & CO2 reactor.

Anyone used a reactor with magnum 350? should the reactor be on the inlet or outlet side.

Thanks for helping.
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post #6 of 17 (permalink) Old 11-15-2006, 03:00 AM
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Consider a powered CO2 reactor like in this sump
https://www.plantedtank.net/forums/eq...nal-sorta.html

UVs do not need to be run 24/7, consider making it portable like this.
https://www.plantedtank.net/forums/di...terilizer.html

It is more efficient, IMO, to do your setup this way with a sump. If you had a cannister, it would be different. Search this forum for ideas, use search words like "sump", "UV sterilizer", "CO2 reactor", etc., can save you a lot of time and money learning off other hobbyist's DIYs.....DC
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post #7 of 17 (permalink) Old 11-15-2006, 04:10 AM Thread Starter
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Consider a powered CO2 reactor like in this sump
https://www.plantedtank.net/forums/eq...nal-sorta.html

UVs do not need to be run 24/7, consider making it portable like this.
https://www.plantedtank.net/forums/di...terilizer.html

It is more efficient, IMO, to do your setup this way with a sump. If you had a cannister, it would be different. Search this forum for ideas, use search words like "sump", "UV sterilizer", "CO2 reactor", etc., can save you a lot of time and money learning off other hobbyist's DIYs.....DC
I enjoyed reading your setup.

I always thought that I was the only one that as a giant sponge filter in the sump, after reading your post, now I know for sure that I am not the only one.

My tank in 180g (6'x'2'x2'). the current sump is a 20g glass tank which is vertically devided into 3 compartments. Water from overflow enters the first compartment. Between 1st and 2nd compartment is the mechanical filter. Water then waterfall from 2nd compartment into the 3 comparment. Giant sponge filter in the 3rd compartment is powered by a MagDrive 9.5.

My sponge isn't as fancy as yours, but more like



Currently, no CO2 for this tank. But I have just brought a 7lb tank and this:

.

I am trying not to have addition 'stuff' in the tank so some sort of external reactor would be needed to add CO2.
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post #8 of 17 (permalink) Old 11-15-2006, 11:31 AM
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I used an external DIY reactor which was connected to the outlet of a Magnum 350, it worked fine as long as the media was not too dirty.
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post #9 of 17 (permalink) Old 11-15-2006, 01:00 PM
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Not to squash the inline CO2 reactor, or powered reactors, but...
Do a search on venturi's in Tom Barr's Beheamth thread.
He loves these, you can add one to your mag after a split, on the output.

Walter

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post #10 of 17 (permalink) Old 11-15-2006, 10:04 PM Thread Starter
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Not to squash the inline CO2 reactor, or powered reactors, but...
Do a search on venturi's in Tom Barr's Beheamth thread.
He loves these, you can add one to your mag after a split, on the output.
would you happened to have a link to pic of Barr's design? thanks
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post #11 of 17 (permalink) Old 11-15-2006, 10:53 PM
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I put a reactor in-line in the return between my sump pump and the tank. I have my UV plumbed in-line on the return as well. I have two returns and use a T to split the water to them with the reactor on one side and the UV on the other. That way both the UV and reactor only see half the total water flow. Works fine for me.

The key with using CO2 with a sump is to make sure your overflow dumps into your sump below the water. Get your overflow pipes under the water in your sump if they aren't already.

David
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post #12 of 17 (permalink) Old 11-15-2006, 11:07 PM Thread Starter
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Hi David, thanks for helping. My overflow pipe is under the water in my sump so no worries there. The few reactor drawings that I have seen, it seems like:

1. reactor works better (a lot better) when they are vertical.
2. water and CO2 enter the reactor from the top and gets released from the bottom.
3. trying to defuse the CO2 in the reactor either by obstacles (balls?) or venturi.

am I missing something here?

I am still debating if I should install the reactor with the existing sump setup or by adding an Magnum 350 to the existing setup. In case of using the existing sump setup, not sure if it should be at the inlet or outlet.
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post #13 of 17 (permalink) Old 11-16-2006, 03:55 AM
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I enjoyed reading your setup.

My sponge isn't as fancy as yours, but more like

How does it work? I like it! Did you make it? Why don't you post how to make one in the DIY? I am designing a 4 tank rack with a sump and would like to try one......DC
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post #14 of 17 (permalink) Old 11-16-2006, 06:53 AM Thread Starter
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How does it work? I like it! Did you make it? Why don't you post how to make one in the DIY? I am designing a 4 tank rack with a sump and would like to try one......DC
there you go: KoiVet.com - Home Made Giant Sponge
This is where I got the idea from.

for my sump, I basically added a pre-filter so that I don't have to clean the sponge as often. I think I clean it like once a year or 18 months. Pre filter is 12" x 12". A sanwich of eggcrate-filter-eggcrate. I also change the design of the pump/sponge also. My look more like this:

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post #15 of 17 (permalink) Old 11-16-2006, 12:34 PM
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Sorry, I didn't see a pic of the set-up. But you can read on here:
https://www.plantedtank.net/forums/ge...uri#post301332

Walter

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