Co2 Scrubber

Thanks. I just placed my order. You're right that per pound they have the best price. At least that I could find.
 
I will.
Can you tell me how many ounces the cup is? I want to get the same size I think.
 
That makes the skimmer the perfect connection.
The only question I have is does it alter the operations of the skimmer in any way to have the skimmer airline slightly occluded?
 
tcamos said:
That makes the skimmer the perfect connection.
The only question I have is does it alter the operations of the skimmer in any way to have the skimmer airline slightly occluded?
Click to expand...

I had to make slight adjustments on my skimmers when I installed these, no big deal though.
 
has anyone played with moving the skimmer air intake higher elevation wise in the room. Concentrated Co2 is heavier than air, my thought is Co2 will have an even distribution in a fresh air enviroment, but in a sealed senario such as a tightly sealed house, with a higher saturation of Co2 than normal fresh air, could it make a change in ph by pulling from a possibly slightly lower concentration of Co2 saturated air, without having to invest in scrubber?
 
I've not tried that. In theory it should produce at least some results. I do have to say the investment in the scrubber is minimal otherwise I probably would have tried some more mundane solutions first.
 
I'm assuming you have the CO2 scubber/reactor above the water line of the sump behind the stand so there's no possibility of a syphon happening?

I like the idea and I think I'll build one of these. So just second guessing here...trying to find potential setup issues... I'd be inclined to mount the scubber above the sump in case the skimmer pump somehow reverses itself (is that even possible?). Or would that be bad news having water go through the scrubber back into the tank should a reversal happen?
 
My main concern is the Co2 scrubber working too well and raising the ph to a dangerous level. Is there any possibility of this happening?
 
Weyrman said:
I'm assuming you have the CO2 scubber/reactor above the water line of the sump behind the stand so there's no possibility of a syphon happening?

I like the idea and I think I'll build one of these. So just second guessing here...trying to find potential setup issues... I'd be inclined to mount the scubber above the sump in case the skimmer pump somehow reverses itself (is that even possible?). Or would that be bad news having water go through the scrubber back into the tank should a reversal happen?
Click to expand...

That's one thing I didn't consider, a siphon is always a possibility, but the the only way I see one starting is if the water level were to rise to the point where water is spilling outside of the sump.
 
Rippinfrags said:
My main concern is the Co2 scrubber working too well and raising the ph to a dangerous level. Is there any possibility of this happening?
Click to expand...

We took off this weekend and when we're gone for more than 24 hours my tanks ph goes up to 8.2ish, with the scrubber it never went over 8.4. I'm assuming whatever buffers are in your salt mix will keep it from going too high.
 
I have both mine setting next to the sump with water level being 4 - 6" above. The air hosing though, is 4 - 8" above the sump water line. The only time I had tank water back flow through the skimmer air line was when I was using an ETSS downdraft skimmer. Thinking about it though, it would probably be a good idea to keep it higher.

As for it raising pH too high, I haven't had a problem IME.
I run mine in old clear RO canisters from an old RODI unit and use the refillable media DI cartridges from BRS to hold the media. Also have cotton plugs as a filter before the air hits the media. Its amazing how dirty this cotton gets, but I have cats and I fart a lot. :p

I did notice a marked pH increase of about 1.0 to 3.0 within hours of installing these on my tanks. For me though, I don't chase pH like I use to; just keep Alk and Cal stable and your good regardless of pH - as long as it is not at the extreme levels - this is IME and IMO.
 
Building one to fit the standard 6 inch co2 absorber canister with 3 air taps. Since I can get these slightly used for free it would be great if it works to increase pH.
 
bugs713 said:
I have both mine setting next to the sump with water level being 4 - 6" above. The air hosing though, is 4 - 8" above the sump water line. The only time I had tank water back flow through the skimmer air line was when I was using an ETSS downdraft skimmer. Thinking about it though, it would probably be a good idea to keep it higher.

As for it raising pH too high, I haven't had a problem IME.
I run mine in old clear RO canisters from an old RODI unit and use the refillable media DI cartridges from BRS to hold the media. Also have cotton plugs as a filter before the air hits the media. Its amazing how dirty this cotton gets, but I have cats and I fart a lot. :p

I did notice a marked pH increase of about 1.0 to 3.0 within hours of installing these on my tanks. For me though, I don't chase pH like I use to; just keep Alk and Cal stable and your good regardless of pH - as long as it is not at the extreme levels - this is IME and IMO.
Click to expand...


I never use to worry about PH either, but in the house I am in now with it being sealed so well, I was seeing a PH as low as 7.5 with guest over and never any higher than 7.8. I can say that my corals seem to be doing better since bringing my PH up.
 
One thing I was wondering about...should there be an air out hose as well as the in? For example if I used a phosban reactor for this it would go in, through the media, then back out again. What I worry about is that having it just go into the cup would reduce the fractionation on my skimmer due to reduced airflow.
 
tcamos said:
One thing I was wondering about...should there be an air out hose as well as the in? For example if I used a phosban reactor for this it would go in, through the media, then back out again. What I worry about is that having it just go into the cup would reduce the fractionation on my skimmer due to reduced airflow.
Click to expand...

I don't understand what you're saying here but my skimmer fractionation was not affected at all. As a matter of fact, it seems to have stabilized the foam head in my skimmer. What Kind of phosban reactor do you plan on using? I know if you use the two little fishies phosban 150, they make adapters to connect your skimmer for just this purpose. http://www.drsfostersmith.com/product/prod_display.cfm?pcatid=24984
 
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