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Thread: Pool light burn marks

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    cubgirl's Avatar
    Join Date
    Jun 2014
    Madison, AL

    Pool light burn marks

    Hi everyone,

    So I'm swimming around in my pool and I notice burn marks coming from the light. It's about size of nickel or quarter near light & goes up, thread like. about 3 inches. It's unnoticable unless you dive under & look. The light still works I think (will test tonight).

    What can cause that? I think I should hire pool certified electrician. Guess I'm just looking for anyone who may have experienced something similar.

    35,000 gallon 20 x 40 IG vinyl salt water using 2 Saltron Retro SWCG
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    Waterco Electroheat 125 Titanium Heat Pump 125,000 BTU
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    Coverstar Automatic Pool Cover and Taylor K-2006 Test Kit

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    Mod Squad pooldv's Avatar
    Join Date
    Aug 2012
    DFW, TX

    Re: Pool light burn marks

    Are you sure they are burn marks? Could it be algae? Take the light out and see if there is some funky stuff back there.
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    2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK flagstone, IntellifoVS, cart filter w/Pleatco, IC40 SWG, Solartouch, 5 12'x4' solar panels, HP50HA heat pump, 8mil solar cover, borates, TF-100 test kit, SONOS, Doheny's Discovery Robot, hot tub on bleach

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    In the Industry

    Join Date
    Jun 2015
    Wildomar, California

    Re: Pool light burn marks

    Never heard of pool light burn marks, but I have seen rust marks from a light screw that was not stainless or something else inside the niche that was rusting.

  4. Back To Top    #4

    Join Date
    Apr 2013
    Sacramento, CA

    Re: Pool light burn marks

    You get burn marks from arcing -- I don't think it arcs under water can we get a picture? Much ore likely this is rust or algae.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

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