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Thread: What is the best Filter medium?

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    What is the best Filter medium?

    What do you guys consider the best type of filter out of everything available.

    I have a sand, as it was recommended when I bought the filter.

    I understand two other choices are cartridge (seems easy) and DE.

    Are there other choices as well?
    BK in CT
    18x33 AG Oval
    Delair/Johnny Weissmuller Model
    About 17,700 Gallons.
    Hayward Flo Max, Sand 1.5HP

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    frustratedpoolmom's Avatar
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    Re: What is the best Filter medium?

    As far as I know, those are the only three. I'm partial to my cartridge, but that's only because it's all I know....
    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
    http://www.PerfectlyClearPoolService.com

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    Re: What is the best Filter medium?

    I'm not an expert, but from what I've read here on the forum, they each have their pros and cons. It's a matter of balancing them out for your own needs.

    If I recall, correctly...

    Cartridges provide the cleanest filtering, but it is more work to clean.

    DE is next best in filtering, but you have to backwash more often, and cleaning and maintenence can be a nuisance.

    Sand is lowest on maintenance, doesn't require as much backwashing, is relatively inexpensive, but doesn't filter as tightly as the other two.

    There's also a sand substitute called zeolite (aka Zeobrite) which claims to filter down to 3 microns (sand is 30 microns - DE is 2 microns). Some folks, here, love their zeolite, others claim there's not much difference.

    Cost is another factor -- both in initial purchase and in operations, but I can't tell you the specifics on that.
    -Xebec
    Doughboy 13K Oval Gallon AGP. 1HP pump. Zeobrite filter.

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    frustratedpoolmom's Avatar
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    Re: What is the best Filter medium?

    I do believe the cartridges can be pricey, but as for cleaning....we just hose ours off about once a month or so. I've heard of people who soak them in various solutions....that's probably more of an issue if you have developed an algae bloom or something. We have never soaked ours in anything. 7th pool season, 2nd filter cartridge. Filter runs 24/7.
    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
    http://www.PerfectlyClearPoolService.com

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    JasonLion's Avatar
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    Silver Spring, MD
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    Re: What is the best Filter medium?

    Here is a good comparison of the different pool types.
    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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