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Thread: DE Filter Guage Question

  1. Back To Top    #1

    Join Date
    Dec 2012
    Location
    Frisco, TX
    Posts
    40

    DE Filter Guage Question

    The gauge on the top of my DE filter has a threaded valve in the back/side of it that I open to purge air out of the line after I clean the pump basket or backwash. Basically you open the valve up and hear air hissing as it is purged from the line and then you get water squirting out the side of the gauge. Close down the relief valve and the air is purged from the line. When my pool was installed this summer the water exiting the relief valve after the air was purged did so with a decent amount of pressure. Basically you didn't want to be standing in a direct line with the valve or you would get squirted. Now, after the air is purged, the water just barely dribbles out the relief valve. Something has changed. I have backwashed monthly and cleaned the baskets weekly. This drop in water pressure started a few weeks ago when cleaning my pump basket. I figured a backwash would fix it but I did one yesterday and it had no impact.

    I am guessing the relief valve on the gauge is clogged or maybe something in the filter is clogged? Is this a something to be concerned about or let it be? If I need to fix it how would I go about doing so?

    Thanks
    22K Gal, Chlorine, IG, Pebble Sheen Plaster, Jandy 60Sq Ft DE Filter, Intelliflo 3HP VS pump with SVRS, Rainbow 320 Chlorine Dispenser
    Other Equip - Jandy PDA PS6, Jandy LRZ400 Heater, Polaris 280 vacuum
    Features - Spa with fountain that empties into pool over waterfall spillway and separate table rock waterfall, Pool gets full sun until later afternoon and then partial sun
    Pool completed and filled 6/28/13

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    duraleigh's Avatar
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    Apr 2007
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    Sebring, Florida
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    30,084

    Re: DE Filter Guage Question

    Assuming your gauge is not clogged, (a cheap fix) that usually indicates a suction side blockage of some sort....somewhere between the skimmers and the pump impeller.

    Does your gauge indicate a lower than normal psi? Have you checked the impeller for trapped debris? skimmers unblocked?
    Dave S.
    42k vinyl and concrete pool, 1.5hp pump, 140gpm filter
    TFTestkits , PoolMath , Pool School

  3. Back To Top    #3

    Join Date
    Dec 2012
    Location
    Frisco, TX
    Posts
    40

    Re: DE Filter Guage Question

    Skimmers clean, pump basket is clean. I am not sure how to check the impeller but will figure that out and check. Pressure is normal per the gauge. Pump does not sound like it is straining and I have good flow in my returns and spa.

    I am thinking it is probably a clogged gauge. Do I replace or unclog it, and how? Thanks so much!
    22K Gal, Chlorine, IG, Pebble Sheen Plaster, Jandy 60Sq Ft DE Filter, Intelliflo 3HP VS pump with SVRS, Rainbow 320 Chlorine Dispenser
    Other Equip - Jandy PDA PS6, Jandy LRZ400 Heater, Polaris 280 vacuum
    Features - Spa with fountain that empties into pool over waterfall spillway and separate table rock waterfall, Pool gets full sun until later afternoon and then partial sun
    Pool completed and filled 6/28/13

  4. Back To Top    #4
    Mod Squad Bama Rambler's Avatar
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    Jun 2009
    Location
    SouthWest Alabama
    Posts
    22,347

    Re: DE Filter Guage Question

    It's probably the air relief that's clogged. That should be a separate part from the gauge. Just unscrew it and clean it out well. I'd probably flush out the gauge too.
    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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