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Thread: Filter Sand

  1. Back To Top    #1

    Join Date
    Apr 2014

    Filter Sand

    I have a Sta-Rite Cristal-flo 24-inch sand filter. The manual says to use #20 Silica sand in the size range of .45 to .55mm, and a uniform coefficient less than 1.75.

    Okay, so I went to the two local big stores and found "Pool Filter Sand" with no data on the bags. One was Quikrete and their website didn't have much information except to say "Silica sand, sieve size 20-40, particle size .85 to .425mm".

    Should I use this sand? Or, should I start looking elsewhere for sand with good data markings?? I may not have many choices.

  2. Back To Top    #2
    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: Filter Sand

    The Quikrete filter sand is just fine, as in nearly all sand labeled for use with pool filters. You do not want to use play sand, or sand with particles smaller than 0.4 mm.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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