Inline Co2 diffuser

Discussion in 'Carbon Dioxide (CO2)' started by Matt Holbrook-Bull, 18 Aug 2007.

  1. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    Im thinking of trying an inline diffuser as I recon Im wasting alot with a mister. Any ideas as to what model and retailer? Something Ive not tried in any way, so I value your more informed input.
     
  2. Ed Seeley

    Ed Seeley Member

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  3. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    Im meaning the ones that actually sit inline on the filter inlet. :)
     
  4. Ed Seeley

    Ed Seeley Member

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    Nottingham
    Sorry! :oops:
     
  5. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
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    Location:
    Chicago, USA
    Hi,
    You can gas your fish pretty quickly with this one:

    http://www.aquaessentials.co.uk/index.p ... ts_id=1370
    I use it on the outlet side of the filter though, not on the inlet side. I use two of them on a 600 liter tank (two filters).

    The only negatives; A pain to clean, and the gas inlet spud is slightly larger than the CO2 tubing - had to use a dab of silicon grease to get the tubing to slide over the spud mouth.

    Positives - very small and very efficient, no need for bubble counter as you can see the bubbles coming up the spud.

    Cheers,
     
  6. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    I love that one, but I dont think I can justify £60 in it just yet, one day though, that would be lovely :)
     
  7. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,937
    Location:
    Chicago, USA
    You're right Flora - I forgot to list the price as a major negative. The only way I justified it is that I got all the rest of the glassware and the regulator for about half price from AquaticMagic. I haven't been able to find a knockoff version of the diffuser so I just swallowed the bitter pill.

    I have a feeling these guys might do a knockoff sometime soon:

    http://www.aquaspotworld.com/index.php? ... odule=main

    If I discover anything I'll let you know.

    Cheers,
     
  8. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    itll be interesting to see if they do :) only trouble with that nice glass one, would be cleaning it. Id want to wrap something dark around it to prevent algae which would defeat the object of buying something so pretty.
     
  9. ceg4048

    ceg4048 Expert/Global Moderator Staff Member

    Messages:
    8,937
    Location:
    Chicago, USA
    Exactly! Remember it's a bubble counter as well. Cleaning is my biggest peeve. What I do is as soon as I disconnect the filter for cleaning I fill it with bleach and let it sit in the bleach solution for the duration of the water change. Later, you can actually hold one end up to the faucet and do a pretty decent job of flushing the bleach out the other end. After it's back in serrvice turn up the CO2 to blast the now hopefully dead algae particles out of the diffuser. To tell the truth though I've never seen a difuser that was easy to clean...

    If anyone has a less monotonous technique for cleaning diffusers please post.

    Cheers,
     
  10. zig

    zig Member

    Messages:
    686
    Location:
    Dublin Ireland
    These look very interesting, I just need to find out where to get them and I will try them.

    200612_20_59_a0062959_18505259-1.jpg

    200612_20_59_a0062959_18533462.jpg
     
  11. beeky

    beeky Member

    Messages:
    879
    Location:
    Chippenham, Wiltshire
    Can't you add a 'T' piece into the inlet side of the filter and connect (with non-return valve) your CO2 tubing to that? You can't see the bubbles going in, but once it's set then it shouldn't change, should it?

    Am I over simplifying things?
     
  12. JamesC

    JamesC Member

    Messages:
    1,276
    Location:
    Bexley, Kent
    It's not advised to add CO2 to the filter inlet as the CO2 can damage the filter's rubber seals.

    James
     
  13. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    thats interesting, id not thought of that.. i may take it out, a pity, cos it works brilliantly
     
  14. JamesC

    JamesC Member

    Messages:
    1,276
    Location:
    Bexley, Kent
    I didn't know about it either until a few weeks ago when someone did this only to find later that water was leaking from the filter's seals. They contacted Eheim only to be told in no uncertain terms by them that it was very much frowned upon. They didn't state though if it affected the warranty or not.

    Some people say they've been adding CO2 for years with no probs but I'd never do it now or recommend it either.

    James
     
  15. Themuleous

    Themuleous Member

    Messages:
    4,126
    Location:
    Aston, Oxfordshire
    It would cost a few quid but you could use eheim double tap connectors either side of the in-line diffuser, so that you could isolate it and remove it relatively easily for cleaning.

    http://www.drsfostersmith.com/Product/P ... 2004+62733

    Sorry for the USA website but it shows what I mean perfectly, I know aquatics-online.co.uk do these.

    Would think actually clearing it would be relatively easy, by soaking it in a bleach solution.

    Sam
     

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