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Thread: Add Fiber Clear to Cartridge filter?

  1. Back To Top    #1

    Join Date
    Jul 2009
    Northern CA

    Add Fiber Clear to Cartridge filter?

    I was wondering if Fiber Clear (sold at Leslies) helps a cartridge filter work better. My pool is cloudy after killing algae and was wondering if this product would help clear it up quicker.

    Fiber Clear is a replacement for D.E. (Diatomaceous Earth) in D.E. filters and can be used as a filter aid or enhancer for both cartridge filters and high-rate sand filters. (according to product description)
    20k gallon in ground pool w/spa, slide, diving board
    Polaris 280, Pentair 3/4 Booster Pump, Pentair 420 Cartiridge Filter , 3/4 Max E Glass Pump,
    Fafco Solar Panels, Pentair 300 Heater

  2. Back To Top    #2
    frustratedpoolmom's Avatar
    Join Date
    May 2007
    SWSuburban Chicago, IL

    Re: Add Fiber Clear to Cartridge filter?

    No I don't think you should use it.

    IF the algae is dead, the filter will clear it, you just need POP. Did you confirm the algae is dead thru and overnight FC loss using an FAS-DPD test?

    If you want to clean the cartridge, there are instructions in Pool School. Using a dishwasher detergent solution and soaking it and hosing it off is a good way to clean it, especially after an algae bloom.
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner

  3. Back To Top    #3

    Join Date
    Sep 2008
    The Woodlands, Texas, USA

    Re: Add Fiber Clear to Cartridge filter?

    If I remember correctly Fiber Clear is a cellulose filter media.

    I see zero benefit in adding it to a cartridge filter. In fact it might create some problems.

    IG 24k plaster with overflow spa. Goldline PS-8 SWG. Tristar 0.75 HP filter pump, Polaris 280, large cartridge filter, 400k BTU NG Max-E-Therm HD, SR Smith Turbo Twister, Life Saver pool fence, ORP managed.

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