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Spirovent trouble

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Jeremy
Jeremy Member Posts: 52
in THE MAIN WALL
Hello Wallies-Anyone have any problems with a spirovent not eliminating air from a system?  We put in a new boiler in June and seems I still cant get all the air purged from the system.  After power purging, its ok for a few days but thats it.  Job is piped pumping away with 3 zone valves, (2 zones cfbb, 1 zone indirect), #30 expansion tank, 329 water feeder (piped under spirovent),  Spirovent is 1".  I posted pics of this job on the wall but cant seem to find them.   . Thanks.



Jeremy

Comments

  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
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    Dawn it...

    Add one ounce of Dawn liquid detergent, and say good bye to Mr. Bubble.



    Seriously.



    ME

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  • mjcromp
    mjcromp Member Posts: 57
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    how?

    does that work?

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  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
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    It acts as a surfactant...

    releasing bubble tension, and causing the bubble to be easier trapped by the aglomulator in the micro bubble resorber.



    I've used it half a dozen times, including my own personal system, and have not a peep out of it since.



    ME

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  • SpeyFitter
    SpeyFitter Member Posts: 422
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    Dawn, eh?

    Hey Mark,

    Interesting tip I may have to pull out one day.

    Where do you recommend adding it? Pop the top of the spirovent and a few drops there or?

    Thanks,

    Scott K

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  • Mark Eatherton
    Mark Eatherton Member Posts: 5,853
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    I carry a small Silver King force hand pump and a bucket...

    I drain a gallon or two out of the boiler, squirt in the detergent, mix it up and pump it back in. In a pinch, I've drained the pressure off the boiler, and pulled a relief valve and poured it in there. Whatever is the easiest for you.



    It beneficially raises the pH of the boiler fluid and is antibacterial.



    ME

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  • HDE_2
    HDE_2 Member Posts: 140
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    PSI?

    Whats the system pressure (cold) and height from boiler to top radiation?

    Could be under pressurized
  • kev
    kev Member Posts: 100
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    Dirt

    Or flux could be trapped in spirovent head. I usually put a cap on the spiro when starting up new system and flush/ refill and then put spiro into action. Do you ever hear the vent releasing air?
  • Unknown
    Unknown
    edited November 2009
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    How would "Dawn" help?

    once you get rid-of the bubbles,, how do you get rid-of the Dawn?



    Sounds like a good system flush,,, why not just use Rhomar and be done with-it?



    Use-to use dishwashing detergent for  tire-to-rim seals,,, do they still?
  • Ron Jr._3
    Ron Jr._3 Member Posts: 603
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    Pumping away......

    Power purging ......... By chance , do any pipes go into a slab ? Sounds like a heating pipe leak if the system keeps going airbound .
  • TonyS
    TonyS Member Posts: 849
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    I think Kev is on the right

    track here. Two zone cfbb, pumping away should clean up real quick. Check your spirovent.
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