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Thread: Leak in Solar Flat Panels

  1. #1

    Default Leak in Solar Flat Panels

    I have a 4 panel SHW system which has been in operation for about 6 months now. The panels are flowing anti-freeze, and were used. The panel loop was pressure tested at 40# (about twice the operating pressure) for 2 days prior to filling with no signs on leaks, six months ago.

    Recently on a cloudy day, I noticed condensation on the inside of the glass on two of the panels. There has not been any obvious pressure drop in the panel loop (at least so far), but I am concerned that there may be a pinhole type leak in these panels (or perhaps rain/snow melt getting inside the panels).

    Perhaps the "right" thing to do would be to take the glass off and check for leaks, and see if the liquid inside is rain water leaking in, or anti-freeze. however I was hoping that there might be an easier way to see if this is needed. I suppose I could just wait a while to see if any obvious pressure drop happens in the panel loop.

    Any other simple ways to figure out if that moisture in the panels is just rain water getting in, or anti-freeze leaking out?

    TIA

  2. #2
    Master Plumber master plumber mark's Avatar
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    Talking Probably Condensation.....

    it is probably just normal condensation...


    Trust me, you would know if it were glycol leaking out
    god , would you know....

    if the pressure guage on the panels down at the tank has stayed the same, its probably best to leave well enough alone...


    Only 6 months old,
    I assume that the place you bought the panels from has already gone belly up??? What gives there??


    before you attempt to take those panes off the panels,
    why not take some clear silicone and try to seal up any spots that look to be compromiseing the system??


  3. #3
    Plunger/TurdPuncher kingsotall's Avatar
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    Quote Originally Posted by master plumber mark View Post
    Trust me, you would know if it were glycol leaking out
    god , would you know....
    I have seen a water feature/waterfall that was the loveliest shade of green/blue. That makes for an expensive fix as there is nothing cheap about glycol.
    I just post cuz I like to see my avatar.

  4. #4
    Master Plumber master plumber mark's Avatar
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    Talking Novan oil

    Quote Originally Posted by kingsotall View Post
    I have seen a water feature/waterfall that was the loveliest shade of green/blue. That makes for an expensive fix as there is nothing cheap about glycol.
    Used to install the NOVAN systems and they used a special red hydrolic oil in their panels that was supposed to be good forever......

    when it leaked on the roof, it was a god awful mess
    that never cleaned up good enough for the cusotmer


    looked like transmission fluid all over the place....

  5. #5
    Plunger/TurdPuncher kingsotall's Avatar
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    Imagine that coming through the walls...



    yeah, I know, always the melodramatic one...
    I just post cuz I like to see my avatar.

  6. #6
    Master Plumber master plumber mark's Avatar
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    Talking keep the cats away....

    In Denver, we had a customer that claimed his cat drank
    something leaking on the floor by his panels in the basement and the cat ended up dead.....

    the company I worked for got the blame for his demise...

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