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Thread: Filter fails to prime consistently

  1. Back To Top    #1

    Join Date
    Aug 2009
    Location
    Edmond, OK
    Posts
    4

    Filter fails to prime consistently

    For some unknown reason, my newly acquired pool (Blue Haven approx. 5 yrs. old), has a filter that doesn't always prime. I have to hit the service light button to stop the filter, unscrew the filter pump basket lid, add water (repeat up to 3 times) then it will fire up.

    The previous owner said that he rarely encountered this problem. Recently, the motor was replaced (supposedly with a new ring), I had the sucker/skimmer check valves replaced with new o-rings due to frequent clogging and contributing to the priming issue. I had two pool service techs (from different companies) come out and do a check/maintenance. One suggested disabling/plugging the 02 Oxidizer to increase filter flow (decrease air in plumbing). I just disabled it so I'll see the effect it will have shortly. Flow is certainly better without the oxidizer.

    Any ideas? Air being scavenged somewhere not yet noticed?

    Oh yeah, the pool tech/owner said the Oxidizer is overrated and ineffective. I'm going to research that one...
    24,000 Gallons
    Hayward SwimClear cartridge filter
    SWG InGround
    Plaster
    1.5 hp Northstar, Filter flow (?)

  2. Back To Top    #2

    In the Industry
    duraleigh's Avatar
    Join Date
    Apr 2007
    Location
    Sebring, Florida
    Posts
    28,420

    Re: Filter fails to prime consistently

    A properly functioning circulatory pool system will have no air in it. If yours does, you have a suction side leak that needs to be traced.

    Once you discover that air leak, the pump will prime with ease.

    My assumption is that when you shut off the pump, the pump basket empties of water so there is mostly air in it when the pump restarts. Sometimes, you can very carefull inspect all the unions, joints, etc. and actually hear that leak.

    It is possible it could be a leak on the pressure side but you would normally see that as a water leak when the pump is running.
    Dave S. - Forum owner
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Aug 2009
    Location
    Edmond, OK
    Posts
    4

    Re: Filter fails to prime consistently

    Thanks duraleigh. Since disabling the oxidizer, I have had no priming problems. I'm going to keep observing for another week and see how it goes. The oxidizer seems to be the culprit.
    24,000 Gallons
    Hayward SwimClear cartridge filter
    SWG InGround
    Plaster
    1.5 hp Northstar, Filter flow (?)

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