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Thread: Baseline DE filter pressure seems high

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    Join Date
    May 2008
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    Tucson
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    Baseline DE filter pressure seems high

    I have an old Hayward 1.5HP Superpump, 2" plumbing, and a Hayward 4820 DE filter with a cartaker system with 1.5"? plumbing. My baseline pressure with clean filters and new DE is around 28 psi. This seems awful high compared to most recommendations on this fantastic forum. Does this pressure seem right?
    ~25000 gallon free-form in-ground plaster pool located in Tucson in full sun
    TFT-100 Test Kit
    Hayward DE4820 filter
    Caretaker system
    Hayward 1 1/2 HP Super Pump

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    Spring, TX
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    Re: Baseline DE filter pressure seems high

    Do you know how old the pressure gauge is? Not sure how long these last but it could have gone bad.
    13,000 Plaster IG Pool approx
    Hayward C5030 Cart Filter
    Emerson 1081 EB653 1.0 HP 1.40 S.F. 3450 RPM
    Pool Calculator, Pool School, TF Test Kits

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    Re: Baseline DE filter pressure seems high

    Probably going on 10 years old. It registers a pressure change so I know when to backwash but it just seems really high.
    ~25000 gallon free-form in-ground plaster pool located in Tucson in full sun
    TFT-100 Test Kit
    Hayward DE4820 filter
    Caretaker system
    Hayward 1 1/2 HP Super Pump

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    Re: Baseline DE filter pressure seems high

    Pressure gauges that come with most filters are rather cheap items and can be prone to failure. If they are suspect, they are very simple to replace.

    When your pump is turned off, does the needle go to zero?
    10K gallon IG gunite with waterfall; Pentair CC320P filter; WhisperFlo 2 HP pump
    TF Test Kits - Pool Math - Pool School
    "It depends."- JohnT

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    Re: Baseline DE filter pressure seems high

    Very good point, it does not go to zero. Are they just standard pressure gauges you can get at like an autoparts store?
    ~25000 gallon free-form in-ground plaster pool located in Tucson in full sun
    TFT-100 Test Kit
    Hayward DE4820 filter
    Caretaker system
    Hayward 1 1/2 HP Super Pump

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    Mod Squad JohnT's Avatar
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    Re: Baseline DE filter pressure seems high

    Quote Originally Posted by bhodge
    Very good point, it does not go to zero. Are they just standard pressure gauges you can get at like an autoparts store?
    I get mine at a farm store. You can get a larger gauge that's easier to see, but make sure you get no more than a 0-60psi gauge so that pressure changes are more noticable.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  7. Back To Top    #7

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    Re: Baseline DE filter pressure seems high

    by autoparts store I meant home improvement store, multitasking no working so well for me today
    ~25000 gallon free-form in-ground plaster pool located in Tucson in full sun
    TFT-100 Test Kit
    Hayward DE4820 filter
    Caretaker system
    Hayward 1 1/2 HP Super Pump

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    Tucson
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    Re: Baseline DE filter pressure seems high

    I see your in Indiana so I assume you get everything from a farm store!
    Just kidding, thanks for all your help.
    ~25000 gallon free-form in-ground plaster pool located in Tucson in full sun
    TFT-100 Test Kit
    Hayward DE4820 filter
    Caretaker system
    Hayward 1 1/2 HP Super Pump

  9. Back To Top    #9
    JasonLion's Avatar
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    Re: Baseline DE filter pressure seems high

    Pool stores nearly always have pressure gauges, usually under $10. Home improvement stores around here don't carry them, but they do in many areas where pools are more common then they are around here.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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