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Thread: Amount of diatomaceous earth

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    Join Date
    Jul 2011
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    Amount of diatomaceous earth

    Got a late start to opening this year due to needed repairs.

    How much diatomaceous earth to put in the filter for start up (Pentair Quad DE 100)?

    Thanks guys!
    25,000 gallon Concrete/Plaster Pool
    Pentair WFDS-26 - Installed Spring 2012
    Pentair Quad DE 100 - Installed Spring 2012
    Pentair Kreepy Krauly 820 - In Service 05/26/2013
    K-2006 Test kit, Intermatic P1353me Digital Timer, Stenner 85MHP5

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    Mod Squad jblizzle's Avatar
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    Re: Amount of diatomaceous earth

    What does the manual say? They are all available online.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    bobodaclown's Avatar
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    Re: Amount of diatomaceous earth

    Here's the manual:
    http://www.pentairpool.com/pdfs/QuadDEFilterIG.pdf

    page 8 states 10 lbs or 20 1lb coffee cans worth.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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    Re: Amount of diatomaceous earth

    Quote Originally Posted by bobodaclown View Post
    Here's the manual:
    http://www.pentairpool.com/pdfs/QuadDEFilterIG.pdf

    page 8 states 10 lbs or 20 1lb coffee cans worth.

    Thanks for the responses. When i initially asked I wasnt able to access the pdf on my phone but now I have normal internet access and just added the d.e.
    25,000 gallon Concrete/Plaster Pool
    Pentair WFDS-26 - Installed Spring 2012
    Pentair Quad DE 100 - Installed Spring 2012
    Pentair Kreepy Krauly 820 - In Service 05/26/2013
    K-2006 Test kit, Intermatic P1353me Digital Timer, Stenner 85MHP5

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    bobodaclown's Avatar
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    Apr 2011
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    Murrieta, CA
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    Re: Amount of diatomaceous earth

    Glad we could help.
    Murrieta, CA. 15K (Est) pool/spa. Hayward Tristar SP3220EE 2.70HP pump, Hayward Swimclear Cartridge filter C4025 425sqft (PA106), Pentair Mastertemp 400 heater. TF-100/Speedstir

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