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Thread: Air in Filter - normal?

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    Montare67's Avatar
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    May 2009
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    Naples, FL
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    Air in Filter - normal?

    Was looking at my filter last night opened the air release valve on top of the unit (while the pump was running) and to my suprise air was forced out for at least 10-15 seconds before any water was released. Did the same thing today and more air released.

    Is this normal? The pump had been running for at least 8hours prior.

    In order to pass the final plumbing inspection, my builder just replaced one of the pump's drain plugs with an SVRS device - although I do not know if the air in the filter was present prior to that...

    I do notice a few air bubles in the returns and I have less pressure for waterfall/deck jets.

    thx
    24000gal IG Plaster, Jandy 2Hp, Jandy CL460 Cartridge, Polaris 280 w/booster

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    sammm's Avatar
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    May 2007
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    North Richland Hills, TX
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    Re: Air in Filter - normal?

    Not normal....you are bringing in air on the suction side. Most common is the o-ring on the basket lid near the pump needs to be lubed or replaced.
    WetEdge Satin Matrix, 16K gallon, Pentair NSP-60 DE filter, Pac Fab Challenger, 2HP pump, BBB, Polaris 360

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    Re: Air in Filter - normal?

    I had the same problem. I read a post on here about pouring water over the basket lid to see if there was air infiltration at that point. I did and the air bubbles in the strainer went away. I found a small crack in the o-ring and replaced it. However, I was still getting bubbles. I then I poured water on the connection on the suction side that goes into the strainer basket and determined that air was also getting in there. I sealed around that connection with silicone and all the air bubbles went away.
    South Florida. 20,000 gallons; 16x35 rectangular gunite; Pentair Intelliflo VF Variable Speed Pump; Hayward cartridge; Aqua Rite SWG. Dolphin Oasis Z5 Robotic Pool Cleaner; Kopec 540sc Electric Heat pump pool heater; Pool built in Spring 2004.

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    mas985's Avatar
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    May 2007
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    Pleasanton, CA
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    Re: Air in Filter - normal?

    If you are saying that you primed the pump 8 hrs ago and the filter still has air in it, then that may be normal. You will usually have air in the filter after the initial priming and should be purged manually. After you bleed the air out, it should not accumulate anymore in the filter unless you have a leak. Also, if you see air in the pump basket, then you might have an air leak.
    Mark
    Hydraulics 101; Pump Ed 101; Pump/Pool Spreadsheets; Pump Run Time Study; DIY Acid Dosing; DIY Cover Roller
    18'x36' 20k plaster, MaxFlo SP2303VSP, Aqualogic PS8 SWCG, 420 sq-ft Cartridge, Solar, 6 jet spa, 1 HP jet pump, 400k BTU NG Heater

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    Re: Air in Filter - normal?

    You don't have an Ozone generator do you? I have an ozone generator that connects to the small inlet at the bottom of my pump. I have a continual stream of bubbles coming out of my returns. I've been presuming it is from what the ozonator puts into the system, but now that you mention it, I should probably turn the thing off for a day to be sure.
    ----------------------
    20,500 gal gunite pool w/ PebbleTec and infloor cleaning system.
    Sta-Rite System 3 cartridge filter.
    Houston, TX

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    Montare67's Avatar
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    May 2009
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    Naples, FL
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    Re: Air in Filter - normal?

    SVRS device reemoved and drain plug replaced - problem solved...

    thx
    24000gal IG Plaster, Jandy 2Hp, Jandy CL460 Cartridge, Polaris 280 w/booster

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