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Thread: Backwash works, but filter mode does not.

  1. Back To Top    #1

    Join Date
    May 2014
    Location
    Rhode Island
    Posts
    11

    Backwash works, but filter mode does not.

    Just opened the pool. I have the correct pressure on the filter meter when using the backwash setting on the multiport. When I switch to the filter setting, I get no pressure and no output from the pool returns. I removed the return winterizing plugs. It makes a gurgling sound from the pump when I shut the system off, but I didn't think I have a suction problem because it works fine in the backwash setting. Any ideas?

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    JasonLion's Avatar
    Join Date
    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Backwash works, but filter mode does not.

    Are there any valves on the individual return pipes that might be closed and need to be opened?
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

  3. Back To Top    #3

    Join Date
    May 2014
    Location
    Rhode Island
    Posts
    11

    Re: Backwash works, but filter mode does not.

    Thanks, just had to let it run for a couple minutes. Then everything started working as it should.

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