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Thread: I need Hayward Pro-Grid DE filter identification help

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    sailman's Avatar
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    I need Hayward Pro-Grid DE filter identification help

    I have a Hayward Pro-Grid DE filter that has the following possible model numbers listed on the info decal: DE2420, DE3620, DE4820, DE6020 and DE7220 but none of them are checked so i don't know which I have and therefore how much DER to use. Can anyone identify it from this pic or know what dimensions each one has?
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    16K gallon chlorine, inground, plaster w/stone surround and waterfall, Hayward 3620 DE filter, 1 HP pump, separate 3/4 HP pump for waterfall

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    Mod Squad Bama Rambler's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    Here you go. Measured from bottom to middle of air relief valve.

    DE2420 = 32" -- 3lb DE
    DE3620 = 34.1" -- 4.5lb DE Edited to correct model number. Thanks Paul
    DE4820 = 40.1" -- 6lb DE
    DE6020 = 46.1" -- 7.5lb DE
    DE7220 = 52" -- 9lb DE
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    frustratedpoolmom's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    When you were cleaning it, did you disassemble the grids to clean in between them? Sometimes caked-on stuff gets caught in there...
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    sailman's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    I had planned on disassembly but the caked on stuff yielded to my hose stream and washed out the bottom.
    16K gallon chlorine, inground, plaster w/stone surround and waterfall, Hayward 3620 DE filter, 1 HP pump, separate 3/4 HP pump for waterfall

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    sailman's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    Thanks Bama Rambler!!!
    16K gallon chlorine, inground, plaster w/stone surround and waterfall, Hayward 3620 DE filter, 1 HP pump, separate 3/4 HP pump for waterfall

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    frustratedpoolmom's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    Lucky you!
    Helpful links: Pool School; CYA/Chlorine Chart
    24' round AG pool, 52" high, Raypak heater; Waterway 2 spd Pump;
    150 Sq ft. Clearwater Cartridge Filter; Former and DISSATISFIED "Pool Frog" owner
    http://www.PerfectlyClearPoolService.com

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    Re: I need Hayward Pro-Grid DE filter identification help

    Welcome to TFP!!

    3600 - eh? Now that it's properly clean and able to properly do it's job, you can keep it that way with my DE filter advice (which can be found here)
    Luv& Luk
    -Ted

    Having done construction and service for 4 pool companies in 4 states starting in 1988, what I know about pools could fill a couple of books - what I don't know could fill a couple of libraries :-D

    POOL SCHOOL, TF Testkits, Jason's Pool Calculator, CYA vs. cl chart, (Just a few DARNED handy links!)

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    Re: I need Hayward Pro-Grid DE filter identification help

    Quote Originally Posted by Bama Rambler
    DE6320 = 34.1" -- 4.5lb DE
    DE3620 = 34.1" -- 4.5lb DE

    (picky, picky...)
    --paulr
    BBB "Intermediate Swimmer"
    IG plaster pool 18.5K gal, Hayward Pro-Grid DE filter, 3/4 HP Hydramax II; Polaris 380, 3/4 HP booster
    AG spa 325 gal, probably Sundance of some kind
    Water testing instructions on one page

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    Mod Squad Bama Rambler's Avatar
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    Re: I need Hayward Pro-Grid DE filter identification help

    Good catch Paul. I called myself proof reading it to!
    Dave J. TFP Moderator
    24' x 52" Round AGP. 2hp/¼hp SPL Power-Flo 2-speed pump. 200sqft Waterway Cartridge Filter. 45MHP2(3GPD) Stenner Peristaltic Pump
    Pool School ----- Pool Math ----- TF-Test Kit

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    Re: I need Hayward Pro-Grid DE filter identification help

    Quote Originally Posted by Bama Rambler View Post
    Here you go. Measured from bottom to middle of air relief valve.

    DE2420 = 32" -- 3lb DE
    DE3620 = 34.1" -- 4.5lb DE Edited to correct model number. Thanks Paul
    DE4820 = 40.1" -- 6lb DE
    DE6020 = 46.1" -- 7.5lb DE
    DE7220 = 52" -- 9lb DE
    Hello. I am trying to identify a Hayward also. Do you mean the bottom of the legs, or the bottom of the filter cylinder itself? Thank you.

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    Re: I need Hayward Pro-Grid DE filter identification help

    See page 4 of the link for a diagram:
    http://www.hayward-pool.com/pdf/manu...rid-DExx20.pdf
    20000 gallon vinyl liner in ground pool
    16' X 34' rectangular diving pool
    Hayward Pro Grid DE Filter
    Hayward 1 hp Super Pump
    TF-100 Test Kit Stenner 45MPHP10

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