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Thread: Air bubbles from return jet, temporarily

  1. Back To Top    #1

    Join Date
    Jul 2016
    Location
    Apple Valley, MN
    Posts
    3

    Air bubbles from return jet, temporarily

    So, this is my first post, but I've been reading this site since I bought a house with a pool last summer and it's been absolutely invaluable. Can't believe the amount of money I wasted and bad advice I received at the pool store before finding TFP.


    Anyway, I'm wondering if the following is normal- when I shut off the pump and remove the cover from the basket filter to clean the basket, the water in the basket starts to drain and I hear loud gurgling noises. I assume at this point air is entering the sand filter. The noise stops after a few minutes.


    After cleaning, I put the basket back in, fill with water, put the cover back on making sure it has a good seal. I turn the pump back on (filter mode) and everything works except one of my return jets spits out a good amount of air bubbles for 2 to 3 minutes.


    After that 2 or 3 minutes, everything settles down, no more air bubbles and everything seems to be running clean. Just wondering if this is something to be concerned about, or if all systems work this way.


    Thanks!
    28K Gallons
    In-Ground Rectangular
    Vinyl Liner + Vermiculite
    Pentair Sand Dollar Filter

  2. Back To Top    #2

    In the Industry

    Join Date
    Oct 2014
    Location
    Sacramento, CA
    Posts
    72

    Re: Air bubbles from return jet, temporarily

    you are hearing gurgling because once you open the lid to the pump water back flows from the filter back into the pump down the suction line, also once you take the lid off you introduce air to the system so when you start your pump if you have an air relief on your filter open that until water shoots out, otherwise its going to work itself out through the returns
    David Randolph
    Warranty Station
    Pentair
    Jandy
    Owner Sac Pool Pros

  3. Back To Top    #3

    Join Date
    Jul 2016
    Location
    Apple Valley, MN
    Posts
    3

    Re: Air bubbles from return jet, temporarily

    Makes sense to me. Thanks so much!
    28K Gallons
    In-Ground Rectangular
    Vinyl Liner + Vermiculite
    Pentair Sand Dollar Filter

  4. Back To Top    #4

    Join Date
    Aug 2014
    Location
    Northern IL
    Posts
    4,615

    Re: Air bubbles from return jet, temporarily

    When you shut off your pump to clean the filter basket, close the inflow valve(s) to the pump. Then clean the basket. Turn the pump on and reopen the inflow valves. That should do it.

  5. Back To Top    #5

    Join Date
    Jul 2016
    Location
    Apple Valley, MN
    Posts
    3

    Re: Air bubbles from return jet, temporarily

    I guess I didn't mention it, but I certainly always shut the inflow valves tightly after turning the pump off and before opening the basket lid. So I'm actually not sure where it could be draining to unless it's getting past those valves.

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