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Thread: Bubbles coming out of the jets

  1. Back To Top    #1

    Join Date
    May 2010
    New Engalnd

    Bubbles coming out of the jets


    Trying to identify the issue here. WHen I run the filter, I notice bubbles coming out of the jets. The first place I looked was the basket on the pump. While running, there seems to be some mix of air in the basket as the water is swirling around (i can see through plastic top). This leads me to believe it is somewhere in the skimmer or skimmer line. What would or could be a likely cause here? or how should i begin to assess? Also, fully recognizing it may not be the skimmer line, I'll check anything.

    I'm also wondering if I should try a water loss test? I havent seen any water loss, but the pump has been running non stop as I try to clear it after a ridiculous winter.(which by the way this shocking process is approaching 3 weeks, rather than the normal 8-10 days.

    Hayward Pump 3/4 HP - brand new
    sta rite sand filter - not sure of size, i will get back to this
    20 by 40 inground pool, vinyl liner, 8ft deep end
    2 skimmers and a main drain.
    1 jet in the deep end, 1 jet in the shallow end.
    Live in New England = about 3 months of pool usage.

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Sebring, Florida

    Re: Bubbles coming out of the jets

    You have a suction side air leak. Somewhere between the pump and the skimmer(s), air is being sucked into the system. It is above ground 95% of the time. Find that leak and your issues will be solved. There is an article in Pool School that may be of benefit

    There is no water loss associated with it.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3
    Propbndr's Avatar
    Join Date
    Mar 2015
    Charles City, Va

    Re: Bubbles coming out of the jets

    Is your water level at or above the minimum marks on the face of your shimmer (normally at least half way up the opening)? Look in the skimmer box for a vortex. If there is one, your water level may be too low. If the water level is correct, try dropping a tennis into the skimmer. That will breakup any vortex and stop air from being mixed into the water. Be sure to open your filter bleed to vent off any air trapped in the filter housing. Keep venting until a solid stream of water comes out.

    If everything is correct at the skimmer, your pump filter basket gasket my be leaking. Try pouring water over the cover and see if the air stops being drawn into the system. If that works, take the cover off, gently remove the o-ring and inspect it for cracking. If no cracking, put a good coat of silicon o-ring lube on it and reinstall. Do not over tighten the pump cover as that can cause it to leak.

    Warning! DO NOT use plumbers grease on the o-ring! That grease can damage the pump housing.

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