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Thread: Cartridge Filter "DEEP" Cleaning???

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    TeamNelson's Avatar
    Join Date
    Feb 2013
    Tucson (Marana) AZ

    Cartridge Filter "DEEP" Cleaning???

    Besides water & hose is there any "deep cleaning" solutions I can make to clean my filters? OR? Ideas:

    We noticed an oily film over the top of our pool water when we opened the auto cover -cannot pinpoint what it's about or from. The water doesn't feel oily when touched by hand. The mechanics of the cover are not able to touch the cover from the tube that it winds up on. The cover is about 3 months old & this is the 2nd time in 2 weeks we noticed what looks slightly oily & very minimal on the water surface only before the pump runs. Once the pump runs it goes away. The filters look normal as we clean them monthly they don't get a chance for much to hang around them. The filters are less than 6 months old, nothing abnormal in the pool for debris or such... No bather load in pool about 4 weeks & only once in spa about 3 weeks ago total 4 people.

    Test readings/ SWCG
    Pool Temp73 & Outside 90
    FC 5
    CC 0
    Salt 3800
    PH 7.6
    Alk 70
    CYA 70
    CH 375
    12/2012; 16K Gal. IG PebbleTec, Pool w/Spa attached, Pump Sta-Rite IntelliPro 4speed VS 3050 160gpm, Cartridge Filters Sta-Rite S8M150 450SqFt, Pentair IC60 SWCG, Turbo System 20 In Floor PopUp Heads Cleaner, Zodiac Auto Cover, Pentair EasyTouch 8 Controls & Screen Logic Interface w/APP for phone remote access, InterFab Slide, FiberOptic perimeter lites, TestKit TF100!!! The BEST & the Taylor Speed Stir - A MUST HAVE!!!

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    Re: Cartridge Filter "DEEP" Cleaning???

    Usually just a spray down with a hose is enough. However, if you feel that they need more, you can soak them in a solution of 1 CUP of TSP to five gallons of water.

    Sometimes the cover pump can leak oil and get oil on the top of the cover. Then, when the cover rolls up, the oil transfers to the bottom of the cover. Then, when the cover is closed, the oil transfers from the bottom of the cover to the water.

    The oil is a clear mineral oil and can be hard to see unless you are looking for it.
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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Cartridge Filter "DEEP" Cleaning???

    This post has a good set of instructions on through cleaning of cartridge filters. It is written from a spa perspective but everything there applies to pool filters as well. From your description it doesn't sound like you need to do this just yet.

    A slight bit of oil on the surface of the water is probably organic oils. They tend to accumulate when there are a lot of leaves falling in the pool and will go away when FC is slightly elevated for a couple of days.
    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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    TFP Guide

    In the Industry

    Join Date
    May 2007
    New Brunswick Canada

    Re: Cartridge Filter "DEEP" Cleaning???

    I have always used a weak degreaser on any spa or pool cartridges, works like a charm getting rid of that crud, just make you sure you really really rinse them.

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