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Thread: Drain below lights?

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    Join Date
    May 2012
    Location
    Ottawa
    Posts
    13

    Drain below lights?

    ive drained my water below the return jets, about 4", and lowered my LED lights to the bottom of the pool. I've just noticed that the waterline is now halfway across my light housing. I was hoping to just throw in some foam inside the housing as protection but wanted a second opinion. I'm trying to avoid taking more water out as its getting pretty low in the shallow end.
    17,000 gal, IG, vinyl, single speed pump, cartridge filter, built 2014, SWG, natural gas heater, city water fill.
    Jacuzzi hot tub, j-280 model, 400 gal, with Clear ray, chlorine system, well water fill.
    Taylor k-2006 test kit.

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    JasonLion's Avatar
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    May 2007
    Location
    Silver Spring, MD
    Posts
    37,879

    Re: Drain below lights?

    In northerly climates, such as yours, it is best not to allow there to be ice at the depth of the light fixtures, either by draining below them, or by keeping the water level reasonably high above them. There won't necessarily be any problems. But it is certainly possible for the ice layer to shift enough to damage, or even tear out, light niches/fixtures if the niche/fixture is embedded in the ice.
    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

  3. Back To Top    #3

    Join Date
    May 2012
    Location
    Ottawa
    Posts
    13

    Re: Drain below lights?

    Thanks! I'll be left with about 17" - 18" of water in the shallow end. I think I read that as long as I don't go below 8" then I'm fine. Is that correct?
    17,000 gal, IG, vinyl, single speed pump, cartridge filter, built 2014, SWG, natural gas heater, city water fill.
    Jacuzzi hot tub, j-280 model, 400 gal, with Clear ray, chlorine system, well water fill.
    Taylor k-2006 test kit.

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