Spiro Diffuser

Discussion in 'Carbon Dioxide (CO2)' started by swackett, 1 Jun 2008.

  1. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    HI,

    I just bought a spiro diffuser and wondered if anyone can tell me how to get it to work, as I can't seem to find any information on this.

    I attached the C02 tube to the spiro but the gas just formed a large bubble in the verticle tube and did not travel down around the turn and up into the spiral. Do I have to completely fill it with water? Does it take time to work?

    Any advice welcome

    Thanks
     
  2. planter

    planter Member

    Messages:
    427
    Location:
    Surrey
    Steve, It should start to work after a few seconds. It takes a build up of pressure to force the bubbles through the fine ceramic disc. Make sure all your hose is secure and you have no leaks! you may have to open the regulator a little to force the gas through.
     
  3. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    Do you need water in it as I see on AE in the description it says the bubble is in contact with the water whilst going around the spiral? If so how do you get water in it ??
     
  4. Ed Seeley

    Ed Seeley Member

    Messages:
    3,262
    Location:
    Nottingham
    When you turn it off you should find that it fills with water. Otherwise disconnect it underwater and that should help the water get in.
     
  5. Steve Smith

    Steve Smith Member

    Messages:
    4,428
    Location:
    Leamington Spa, UK.
    Are you using it on a yeast system or pressurised? If yeast, maybe you're not getting enough pressure to force the CO2 through the diffuser?
     
  6. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    Hi, I'm using a pressurised system. I can't fill it with water as there is air in it and it will not escape through the ceramic disc - Is this normal or is diffuser faulty?
     
  7. JamesM

    JamesM Member

    Messages:
    1,913
    Location:
    The BIG End, South Wales
    Hold it under the water without the co2 line attached and gently tap the diffuser. Slowly it will fill with water.
     
  8. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    I took delivery of my garlic sausage this morning, so decided to look in to filling the spiro type diffuser (looks like the 9000). I tried holding it and tapping it, but with this technique you are going to be stood there for a long time with your hands in the water.

    What also works however is to put just the diffuser in the tank upside down, without the line attached, just stick it in there with it's suckers. Slowly air bubble out of the tail and the diffuser fills with water. Job done without standing around. So you can go off and do something else whilst it fills.

    Ade
     
  9. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    Right, a few updates on this topic.

    I tried the spiro type (not an actual spiro, just a similar one) diffuser, looked similar to the Spiro 9000, I took it out again and replaced it with one of the little rhinox style diffusers. I didn't notice any squeaking or anything, but I did notice that the bubbles were actually bigger than the ones that I was getting using a lime wood air diffuser. The rhinox type however gives of much smaller bubbles. I also found that my one has a tiny hole at the bottom of the helix tube, naturally the CO2 was just bubbling out of this hole instead of traveling up the tube, rendering it completely pointless. It's just as easy to count the bubbles as they enter the rhinox style diffuser.

    I also tried the rhinox type on my DIY, it was a definite no go. The spiro would probably work however, as it seems to need a lot less pressure to push the CO2 through it.

    So basically bubble size wise it seemed to me that the spiro style diffuser (as sold by Lunapet) gave off the biggest (despite been one with a ceramic disk), followed by the lime wood air diffuser and then the rhinox style one from Hong Kong which gave off the smallest bubbles of all. So for use with DIY yeast CO2 I would still recommend using a lime wood air stone, but for pressurised I prefer the rhinox type ones.

    Ade
     
  10. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    Thanks for the information Ade, I'll try attaching it upside down in the tank. :)

    Steve
     
  11. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    I attached the Spiro upside down in the tank and after a week no joy, algae on the ceramic disk and no water in it. So I cleaned it in a bleach solution and it now seems there is bleach in it which I can't seem to get out. I''ve given up with this now and have bought a Rhinox 5000 instead! Hopefully this will be slightly more straight forward!

    Cheers
     
  12. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    the spiral bit in the diffuser is for decorative purposes only.. it serves no practical function. I had one a few years ago and was horribly disappointed with it. It was even Richard from AE that told me that as well.
     
  13. JamesM

    JamesM Member

    Messages:
    1,913
    Location:
    The BIG End, South Wales
    You can use it as a bubble counter.. Its a pretty close match to my counter anyway.

    I'm now filling my diffusers with a syringe.
     
  14. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    yes you can, but its touch on go if they work.. and then if they stay working.. badly designed Im afraid.
     
  15. planter

    planter Member

    Messages:
    427
    Location:
    Surrey
    never had any trouble with them!
     
  16. JamesM

    JamesM Member

    Messages:
    1,913
    Location:
    The BIG End, South Wales
    No problems so far, so we shall see.
     
  17. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    The one I tried has a tiny hole in the base of the spiral tube, defeating the object of the spiral completel. lol. I switched to using a rhinox style one pretty quickly, and count the bubbles as they enter this. Bubbles per minute isn't the be all and end all anyway, it's pretty variable the results you get counting bubbles.

    Ade
     
  18. Matt Holbrook-Bull

    Matt Holbrook-Bull Founder

    Messages:
    963
    Location:
    Dorset, UK
    yes the ones Ive seen that dont work all have that odd little hole in them.

    Bubble counts are a pretty good way of keeping track on your own dosage, but you cant compare anyone elses counts with them as they all rely on the aperture, diameter of the feed hosing and operating pressure of your regulator.
     
  19. swackett

    swackett Member

    Messages:
    439
    Location:
    Epsom, Surrey
    I guess you can gauge the amount co2 in the water with the drop checker anyway.
     
  20. Wolfenrook

    Wolfenrook Member

    Messages:
    336
    Location:
    West Midlands UK
    You can also count the bubbles as they enter any glass diffuser and guesstimate using the stream of bubbles coming from the diffuser. :D

    Ade
     

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