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Thread: Jandy Laminar jet trouble shooting.

  1. Back To Top    #1

    Join Date
    May 2017
    Location
    Wichita, KS
    Posts
    9

    Jandy Laminar jet trouble shooting.

    Bought a house last August with a 1 year old pool. Pool builders were maintaining it last year, closed it, and opened this year before handing it over to us to maintain. All 4 laminar jets were working great last year before closing, since opening this year 3 are working as before (shooting into the pool) but one seems to have low pressure and just shoots a stream of water onto the pool deck. I looked at the manuals online and cleaned the inline screen filter (which was not really dirty), opened up the cartridge filter which was completely clean, but neither helped.

    I saw saw there was an adjustment screw, but thought I would check here before messing with it since they were all adjusted perfectly before closing. Any ideas on what else to check? If it matters they are the LED fountains.
    21,000 gal, 18X44 rectangle in ground vinyl lined pool.
    Aquacell SWG, Jandy cartridge filter, gas heater, Jandy Laminar jets X 4
    Auto cover. Wichita, KS.

  2. Back To Top    #2
    Swampwoman's Avatar
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    Apr 2012
    Location
    Grand Rapids, MI
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    3,837

    Re: Jandy Laminar jet trouble shooting.

    Hi Mike. I noticed your post a few days ago but don't have laminar jets so was hoping someone who does would respond. But I wanted to welcome you to TFP regardless.

    My only suggestion at this point is o check with te comany who opened the pool because if they're like my former techs efore I started TFP and DIY, they're supposed to warrant anything tat breaks on closing. So if it worked before you closed, they closed it, and they opened it, but rights they'd normally fix it.

    I suspect having those jets just right is a bit comp,ex so I'd ask them to fix it, but also to show you how tey fix it so that you're more familiar. Best wishes in getting it resolved, and enjoy your new pool!
    In ground vinyl Grecian, 24k gal, Hayward 220t sand filter, VGreen VSP 165, Hayward SWG, Raypak NG 265k heater, dolphin m4.
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  3. Back To Top    #3

    Join Date
    May 2016
    Location
    Woodland, Ca
    Posts
    235

    Re: Jandy Laminar jet trouble shooting.

    At your pad is there a manifold loop with adjustment valves for each laminar? If so, you could try adjusting the other ones down to increase pressure to the jet in question.

    At the beginning of the season I took the front part of mine off (10 or so Phillips screws) and cleaned out some leaves and bugs that were causing disturbances in the flow. I also disconnected the water line where the inline filter is and flushed the lines. I can't see either of these causing the restricted flow, but maybe. Hopefully you have enough slack in the water lines and electrical to pull the laminars out and lay them on the deck while you work on them.

    Good of luck and let us know your results!
    Build Video 2016 -- Solar Pad 20.5K gunite (37'x15') rectangle (3.5'-7') deep-- MicroFusion Laguna finish -- Jandy VS pump, cartridge and iAqualink RS -- Polaris 360 Black -- 2 Laminar jets -- 2 nichless 30w color led -- 550sq/ft Heliocol solar -- Soft water auto fill -- Stenner 17gpd

  4. Back To Top    #4

    Join Date
    May 2017
    Location
    Wichita, KS
    Posts
    9

    Re: Jandy Laminar jet trouble shooting.

    I found an adjustment screw on the actual laminar jet that, for whatever reason, became unadjusted during the winter. Took some time to get it adjusted since a tiny turn of the screw adjusted the jet flow height by multiple feet. I ended up just adjusting all 4 of them to match. Thanks for the reply. If I have a manifold like you described it's buried somewhere.


    21,000 gal, 18X44 rectangle in ground vinyl lined pool.
    Aquacell SWG, Jandy cartridge filter, gas heater, Jandy Laminar jets X 4
    Auto cover. Wichita, KS.

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