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Thread: Purex 4036 DE amount 5.3 (label) vs 3.6 (online manual)

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    Join Date
    May 2012
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    Purex 4036 DE amount 5.3 (label) vs 3.6 (online manual)

    So I'm thru opening, and was looking at the amount of DE that is required for the 4036 filter media - and I found an online manual vs label discrepancy

    [snip] from the pentair online manual
    Diatomaceous Earth (D.E.) Precoat Requirements
    Filter Model *By Weight
    Number Pounds
    4024 2.4
    4036 3.6 <----
    4048 4.8
    4060 6.0


    [snip] - on filter
    label 4036 is punched, and it recommends 5.3 lbs of de.

    I went with the lower amount to try it out - i support this could be min vs max recommnendations - but never noticed it until this year - I've been putting in about 5 lbs on a recharge and things seem to work fine.

    -Adrian

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    Mod Squad jblizzle's Avatar
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    Re: Purex 4036 DE amount 5.3 (label) vs 3.6 (online manual)

    I have a 60 size Hayward and too have seen different recommendations ... either 6 pounds of 7.5 pounds.

    I am not sure it makes a whole lot of difference. Whenever I open it up for a good cleaning (yearly), I am always disappointing with the DE distribution ... seems to always be caked in the middle.
    Jason, TFP Moderator
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    Re: Purex 4036 DE amount 5.3 (label) vs 3.6 (online manual)

    Quote Originally Posted by jblizzle View Post
    I have a 60 size Hayward and too have seen different recommendations ... either 6 pounds of 7.5 pounds.

    I am not sure it makes a whole lot of difference. Whenever I open it up for a good cleaning (yearly), I am always disappointing with the DE distribution ... seems to always be caked in the middle.
    Thx j. The lower amount seems to be working fine and not building backpressure as quickly as the 5 lbs did. Clarity and chemistry appear the same so just gonna stick with it.


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