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Thread: Recharged My DE. Pressure Drop!

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    hellstorm2004's Avatar
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    Recharged My DE. Pressure Drop!

    Hello All,

    I just recharged my DE. After slamming the pool, it was a good time to clean up the filter. But, first thing is I think I added too much DE powder. The Clorox stuff said to add nine pounds of DE. I think I added about 11-12 pounds. Would that be a problem?

    And the second thing is the pressure drop in the filter. Before everything it was about 12 psi now it has dropped to 8 psi. Is there a way to get the pressure up again?

    And third thing us after adding the DE, the pool has become cloudy. How long does it take to clear up?
    Purex Titron FNS DE Filter 25000 gallons approx.
    Century A.O. Smith B855 56Y 2HP Motor. 40x25 (approx). Plaster surface.
    TFT-100 Test Kit.
    Rainbow Lifeguard 320.
    DX5+S Cleaner.

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    Mod Squad jblizzle's Avatar
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    Re: Recharged My DE. Pressure Drop!

    You are thinking about this backward.

    Perhaps you got your filter nice and clean and 8 psi is your new clean pressure? Typically too much DE would cause the filter pressure to be higher than normal. And as the filter gets dirtier, the pressure goes up.

    If you have good flow, then the pressure reading does not matter ... just backwash when the pressure rises 20-25% over the clean pressure.

    Adding DE should not make the pool cloudy at all. I have never had any DE get blown into my pool when adding it. If the cloudiness is from the DE, it should all settle to the bottom in a matter of hours. But, if DE is getting into the pool, then something is not right inside your filter or backwash valve.
    Jason, TFP Moderator
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    hellstorm2004's Avatar
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    Re: Recharged My DE. Pressure Drop!

    Even I thought it would be clean. But when I was pouring the DE mixture into my skimmer basket, I saw one of the Jets spewing the white stuff out! It only happened for a short period maybe 20-25 seconds. But I guess, it did the damage by then!
    Purex Titron FNS DE Filter 25000 gallons approx.
    Century A.O. Smith B855 56Y 2HP Motor. 40x25 (approx). Plaster surface.
    TFT-100 Test Kit.
    Rainbow Lifeguard 320.
    DX5+S Cleaner.

  4. Back To Top    #4
    hellstorm2004's Avatar
    Join Date
    Jul 2015
    Location
    Richardson, Texas
    Posts
    154

    Re: Recharged My DE. Pressure Drop!

    Yeah, I checked this morning. The jets the spewing DE powder all over the pool!
    Purex Titron FNS DE Filter 25000 gallons approx.
    Century A.O. Smith B855 56Y 2HP Motor. 40x25 (approx). Plaster surface.
    TFT-100 Test Kit.
    Rainbow Lifeguard 320.
    DX5+S Cleaner.

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