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Thread: Bubbles in the pump but not going out the returns

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    Bubbles in the pump but not going out the returns

    Installing a 16x32 inground liner pool and trying to troubleshoot an issue with the pump. It's a Hayward Northstar 1 hp and there's little bubbles in the clear window that locks above the skimmer but no air bubbles in the return to the pool. The skimmer is working fine and the return flow is strong, should I be worried? Will this hurt something long term? I've checked all the connections and they seem pretty good, I've read on other forum posts that the union fittings on the Northstar can suck air into them but everything looks ok. Scratching my head now!

    Thanks in advance for any guidance!!

    - PC

    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

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    mas985's Avatar
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    May 2007
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    I have very small bubbles in my pump as well (1 HP Northstar) They are about the size of SWG bubbles or smaller than a pea and don't seem to accumulate to the top of the lid. I think it is just left over from the priming process and the flow rate is not high enough to get rid of them. I would not worry about it unless they are accumulating in the lid which means you might have a leak somewhere.
    Mark
    Hydraulics 101; Pump Ed 101; Pump and Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, 1/2 HP 2sp pump, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater, ThePoolCleaner

  3. Back To Top    #3
    Thanks mas985. Yeah, they don't seem to accumulate there, just see them swishing around. Wondering if it's the skimmer o-ring. Did you have to lubricate it with anything (I've heard vaseline sometimes works)?

    Love Pleasanton, used to go out there all the time when I worked for PeopleSoft!
    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

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    Mod Squad JohnT's Avatar
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    Apr 2007
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    SW Indiana
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    Quote Originally Posted by zappmann
    Thanks mas985. Yeah, they don't seem to accumulate there, just see them swishing around. Wondering if it's the skimmer o-ring. Did you have to lubricate it with anything (I've heard vaseline sometimes works)?

    Love Pleasanton, used to go out there all the time when I worked for PeopleSoft!
    Definitely not Vaseline. Use pool lube.
    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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    Quote Originally Posted by JohnT
    Quote Originally Posted by zappmann
    Thanks mas985. Yeah, they don't seem to accumulate there, just see them swishing around. Wondering if it's the skimmer o-ring. Did you have to lubricate it with anything (I've heard vaseline sometimes works)?

    Love Pleasanton, used to go out there all the time when I worked for PeopleSoft!
    Definitely not Vaseline. Use pool lube.

    Thanks, very good to know!
    Attached Images Attached Images
    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

  7. Back To Top    #7
    Quote Originally Posted by all your parts
    dont worry your ok

    Thanks everyone, appreciate the help. Now if it would quit raining!
    20x40 IG Vinyl, 1.5 HP Whisperflo, Sta-Rite System 3 (300) Sq. ft Cart
    Intellichlor IC40 SWCG, 125,000 BTU Pentair heatpump, Polaris 280
    7' IG FG Spa, 2 HP Whisperflo, Pentair Dynamic III Cart (100) Sq. ft

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