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Thread: Gravel In Bottom of Sand Filter

  1. #1
    Junior Member
    Join Date
    Jun 2010
    Posts
    15

    Gravel In Bottom of Sand Filter

    I am swapping out the sand in my sand filter and my pool store person told me that when they install a sand filter, they put a layer of gravel in the bottom of it. We picked the bag of gravel up along with the sand but, I did not see gravel in my filter after I cleaned all the sand out of it. Any thoughts on this or does anyone do this now?

  2. #2
    Senior Member
    Join Date
    Feb 2010
    Location
    Dayton, Tx
    Posts
    259

    Re: Gravel In Bottom of Sand Filter

    I think older sand filters needed a layer of gravel on the bottom, but newer high rate filters don't use it. So depending on what kind of filter you have, you may need it, you may not. If there wasn't gravel before, I honestly don't see a reason for it now.
    John

    24' round Vogue AGP 12,000 gal. Flotec AT251001-01 IG 1HP pump, Hayward S310t2 sand filter, Intex SWG with copper bars removed
    2007 Sundance Cameo hot tub
    TF-100 (found at TF Test Kits) with Speedstir and Samplesizer

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