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Thread: Cartridge cleaning question

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    Join Date
    Nov 2007
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    Rockland County, NY
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    65

    Cartridge cleaning question

    Hi All

    My filter psi is normally about 12. After a AA treatment I noticed the pressure was at 16 so I decided to clean the two carts in my Sta-Rite 500sf filter. Tons of junk from a messy opening, but the last time I did this I remember being able to get the pleats much "whiter"....certainly not like new, but noticeably cleaner. This time the pleats remained a fairly dark brown after all the other debris was washed away. This is our fifth season. Is it possible I just need a more aggressive cleaning via the overnight soak in TSP? Can iron or iron precipitates clog the filter material? Thanks
    27ft Above Ground Pool
    Sand filter

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    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
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    SW Indiana
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    9,086

    Re: Cartridge cleaning question

    The most important thing is the pressure after cleaning. Did it drop back to 12psi? If it did, and you don't see a shortened cleaning interval, you are probably fine. If the pressure is high or the cartridges need cleaning often, you may need to do a soak, or even possibly a soak and acid wash if your calcium level is high.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

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    Join Date
    Nov 2007
    Location
    Rockland County, NY
    Posts
    65

    Re: Cartridge cleaning question

    Sorry.....forgot to include the most important fact....PSI stuck at 16
    27ft Above Ground Pool
    Sand filter

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    Join Date
    Jul 2011
    Location
    Indianapolis
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    63

    Re: Cartridge cleaning question

    I would suggest a soak. How are you cleaning th filter? Garden hose and nozzle? Are you letting it dry before using it again? Do you have two that you rotate?
    19000 gallon IG installed in 2003, owned by me since 2010, vinyl liner, 18x36, Sta-Rite PLM-150 cartridge filter, 1hp AOSmith motor on <brand unknown> pump, automatic cover, BBB since August 2011

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

    Re: Cartridge cleaning question

    There are good instructions on cleaning a cartridge in this topic.
    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

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