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Thread: How does a sand filter work?

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    How does a sand filter work?

    I'm curious about how a sand filter works...

    Does the water seep through the sand from top to the bottom and then out to the pool? Or, does it go from the bottom of the sand to the top and then out?
    -Xebec
    Doughboy 13K Oval Gallon AGP. 1HP pump. Zeobrite filter.

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    JasonLion's Avatar
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    May 2007
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    Re: How does a sand filter work?

    In normal operation the water moves from the top down. When you backwash, water comes from the bottom up. When filtering you want gravity and water flow both working with you to help keep the sand bed compacted.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
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  3. Back To Top    #3

    Re: How does a sand filter work?

    Thanks, Jason.

    So, the water goes down through the sand and up through the center pipe and out to the pool?
    -Xebec
    Doughboy 13K Oval Gallon AGP. 1HP pump. Zeobrite filter.

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    frankthailand's Avatar
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    Apr 2008
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    Thailand
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    152

    Re: How does a sand filter work?

    Xebec
    Bingo you got it

    Happy swims
    Frank
    Hello all from the land of smiles. Thailand. 5mx9mx1.5 63000L 16300 gall, pebbletex,
    pentair 1hp whisperflow, tagelus TA60 SF, swg monarch esc24 {a bit small for the tropics} 3 returns, 1 skimmer, 2 astral 100watt lights. Planned and built by me
    an AUSSIE expat living thailand for 18 years.

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