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Thread: Quad DE vs. Grid style DE filter

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    Quad DE vs. Grid style DE filter

    I am thinking about getting new DE filter. Are there any advantages of grid style vs. Pentair Quad cartridge DE filter? Also is backwashing going to shorten lifespan of grids/cartridges? Thanks, Kris
    12,750 IG plaster/pebble. 1 HP uprated Duraglass pump. Cartridge filter.

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    JasonLion's Avatar
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    Re: Quad DE vs. Grid style DE filter

    The Pentair Quad DE filters are very highly reviewed. In general you tend to want to open them up and clean them out, which is comparatively easy, instead of backwashing, which tends to be less effective than with other DE filters.

    Backwashing should not have any significant impact on filter lifetime.
    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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    Re: Quad DE vs. Grid style DE filter

    Is than backwashing enough to clean grid style filter without disassembling entire filter?
    12,750 IG plaster/pebble. 1 HP uprated Duraglass pump. Cartridge filter.

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    JasonLion's Avatar
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    Re: Quad DE vs. Grid style DE filter

    Yes and no. Backwashing works well enough for a while. But after a certain number of backwash cycles you need to open the filter and clean it more throughly. How many cycles you can go before breaking the filter down and throughly cleaning it out varies a little by brand/model but generally is enough for a pool seasons worth of backwashing (unless your filter is small and you backwash frequently).
    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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    Re: Quad DE vs. Grid style DE filter

    What is your recommendation Jason? I have unscreened pool in FL and I get a lot of debris from surrounding trees. Which filter style would be better?
    12,750 IG plaster/pebble. 1 HP uprated Duraglass pump. Cartridge filter.

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    Re: Quad DE vs. Grid style DE filter

    I have a Sta-Rite DE filter that is a cartridge style similar to the Pentair. I really like it. I don't backwash. I clean it like a normal cartridge filter. It cleans much easier than a cartridge, though, since it has much less surface area. I can clean my filter in less than 5 minutes and don't lose any water from the pool doing so.
    20'x40' Oval 27,000 gallon Vinyl IG, Coverstar Auto Cover
    Hayward MaxFlo SP2303VSP, Sta-Rite PLD50 30 sq. ft. DE filter
    Rheem 266,000 btu natural gas heater
    Dolphin Nautilus Plus with Clever Clean
    TF-100 testkit w/ Speed Stir

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    Re: Quad DE vs. Grid style DE filter

    Thank you.
    12,750 IG plaster/pebble. 1 HP uprated Duraglass pump. Cartridge filter.

  8. Back To Top    #8

    Re: Quad DE vs. Grid style DE filter

    I just put in the quad filter last year. love it. cleans much easier.

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