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Thread: Sudden Air Bubbles in Return

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    Sudden Air Bubbles in Return

    Hi all,

    Near the end of last season, I mistakenly shut the Jandy valve before turning off the pump (Hayward "Super Pump") which resulted in a big shudder as everything locked up for a moment. I quickly reopened the valve, but evidently caused a seal to break as I started getting air bubbles coming out of the return. Was hoping the situation would magically heal itself over the winter, but no such luck.

    Yesterday, I sealed the connections between the pump and Jandy with Lexel, but no improvement. Any thoughts on other areas -- between the Jandy and the pump -- that might have been damaged by the jolt I created.

    Thanks!
    28k gallon in-ground vinyl. Sand filter. Hayward pump. Manual chlorination.

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    Mod Squad JohnT's Avatar
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    Re: Sudden Air Bubbles in Return

    Welcome to TFP.

    Where is the valve you closed located in your plumbing?

    Air bubbles indicate a leak between the pool (skimmer, drain) and the pump inlet, or in the pump strainer basket itself. Leaks anywhere else will show up as water leaking out.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Melt In The Sun's Avatar
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    Re: Sudden Air Bubbles in Return

    You should take a hose and run water over all the pipe joints between your jandy valve and pump, while the pump is running. If the bubble stop with water running over one of the joints, you've found the leak. You may have to pull the pipes apart and replace them if the Lexel doesn't work on it.
    11,200 gal, Pebble-Tec; Tristar 2-speed 1hp - Swimclear 325 ft2 cart - SWG - A & A in-floor cleaner - Heat pump. For the poolside cooking, a Yoder Wichita and a Big Steel Keg!
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    Re: Sudden Air Bubbles in Return

    Thanks Melt. I did try that with the Jandy output and pump input seals, but should do it with the other seals as well. Will give it a try.
    28k gallon in-ground vinyl. Sand filter. Hayward pump. Manual chlorination.

  5. Back To Top    #5

    Re: Sudden Air Bubbles in Return

    One other quick question. Would the sudden jolt cause damage to the pump itself that would cause air bubbles? The pump seems to be working fine, though perhaps slightly noisier (though that could be the air running through). Or would bubbles be caused only by breaks to seals in front of the pump inlet?
    Thanks.
    28k gallon in-ground vinyl. Sand filter. Hayward pump. Manual chlorination.

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