CO2 issue

Discussion in 'Planted Tank Equipment' started by HC, Jun 28, 2013.

  1. HC
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    HC Plant menace

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    So today I got my 1x2kg CO2 bottle filled. The other one had a leak when ever I connected the regulator the CO2 would come spraying out over my hand. It leaked here:

    [​IMG]

    So when I addressed this with the refill company they said to me that they had checked it and assure me that there is no issue with the valve at question. So this afternoon I decided to test both just incase, guess what both are now leaking at that valve at the top of the CO2 handle.

    Could it be that the following seal on the regulator is not sealing anymore as it is supposed to:

    [​IMG]

    My issue is if it was the seal it wouldn't be leaking at the top where the canisters valve is located at the top?

    Any advise would be greatly appreciated?
     
  2. outkast
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    outkast Algae harvester

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    That seal looks odd. Is it a regulator seal?
     
  3. HC
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    HC Plant menace

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    Yes that is the standard seal that you get with the regulator, it looks odd because I stripped it out of the connector:

    [​IMG]
     
  4. JP01
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    JP01 Moderator Staff Member

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    Re: Re: CO2 issue

    Squeeze valve is faulty, replaced my valve recently.
     
  5. outkast
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    outkast Algae harvester

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    Might be bad luck with that type of extinguisher mechanism. Some ppl are running them without problem, but it's recommended to get a wheel valve for full-time application.

    Still confused by the seal you posted. You state it's from the regulator, but it looks odd (almost a permaseal, but it isn't).
    Addressed this in your reply.
    Good luck!
     
  6. HC
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    HC Plant menace

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    I am going to $@#% swear someone at the CO2 refill place. But why would both be faulty? Can't it handle the working pressure of the regulator? Also would it be more advisable to get a screw valve instead? The place wanted to charge me R550 for the screw valve, thats nearly double what I paid for the canister?
     
  7. Firefly
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    Firefly Green fingers

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    Rather get a screw valve but not for that price. R550 is a major rip. Ones in EL apparently cost R150
     
  8. R.C.
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    R.C. Moderator Staff Member

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    Can't believe no one has picked up on the thread tape. You should not use thread tape on the cylinder valve where the regulator nut connects. The seal happens head to head and not on the thread. Using thread tape will serve no purpose other that potentially getting bits of it stuck in your reg or clogging the CO2 filter, assuming that reg has one fitted.

    Supposedly squeeze (trigger) valves are not made to be forcibly kept open for long periods, so definitely get a wheel valve on you next refill. Here in CPT it's done for R150 all inclusive, so R550 is a total rip off.

    Nothing to do with the WP of the reg, but did they test it with the reg on, i.e. with back pressure form the HP side?
     
  9. HC
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    HC Plant menace

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    Hi RC I actually never knew that,I will be sure not to do this in future. Thanks for that.

    I will call them on Monday again and tell them competitors offer a much better price on the wheel valve.
     
  10. Trev Pleco
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    Trev Pleco Algae destroyer

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    Ok, so the join between the reg, in my case a SAGA, and the valve on the C02 bottle should have no plumbers tape ? Yikes, I better take it off ! :violent1:

    What about then the join between the 6 way needle valve and the SAGA.

    I note Nova Marine use tape between the bottle and the valve they put on..
     
  11. GOJ
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    GOJ Algae harvester

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    HC as RC says there should be no thread tape at that connection, the seal should come from the washer/oring seal attached to your reg. Which should be replaced at nearly every refil.
    @ Trevor I stand corrected but the connection between your reg and 6way manifold should be sealed by some sort of rubber, silicone or nylon oring or washer. I replace mine whenever I disturb it every 5 or 10kgs
     
  12. R.C.
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    R.C. Moderator Staff Member

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    That's fine.

    They all do.

    If fibre seal yes, nylon and Euro perma seals will last quite a few refills. The nylon ones you can flip around too and get a bit more out of 'em.

    Only if the outlet port allows for it (generally you only see this on the nicer reg's.) Some also suggest pipe dope, but can be messy, I would not recommend it.

    [​IMG]
     
  13. HC
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    HC Plant menace

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    Where do you get these seals and how much do they usually go for?
     
  14. Slagter
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    Slagter Aquascaper

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    I have hard nylon and the softer seals. R40 for 2.
     
  15. Charlie
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    Charlie Algae harvester

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    I paid R100 for wheel valve at Nova marine and R270 for a new 2kg cylinder..just BTW :laugh:
     
  16. R.C.
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    Yeah, Nova sometimes has refurbed or pre-owned kit at probably the best price you'll find locally.
     
  17. wolf
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    wolf Valued Contributor

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    Brights electrical sel a nylon seal that is 1mil to big. Just use n knife to cut it and walla
    R2
     
  18. Trev Pleco
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    Trev Pleco Algae destroyer

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    Apart from waking up and finding your CO2 bottle suddenly empty :snorting:, how do you proactively know when your seal needs replacing.. have not tried the soapy bubble test, but this seems a bit primitive..?
     
  19. wolf
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    wolf Valued Contributor

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    The nylon seal only works ones
     
  20. Trev Pleco
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    Trev Pleco Algae destroyer

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    thanks, so which type comes with SAGA then and if it's nylon do I then replace the seal every time I change the bottle ?

    Have filled each bottle a couple of times now, but not the seal..
     

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