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Thread: LED Light Placement in a 20 x 40 rectangular ool

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    LED Light Placement in a 20 x 40 rectangular ool

    Hello. DIY 20 x 40 rectangular pool with liner. We have one LED light (changes to a bizzillion different colors ) and we are trying to determine the best placement for the light. The pool is parallel to the house (the long way) and is about 20 feet away from the house. Thinking that it belongs on the long end closest to the house, facing away from the house. However, not sure if that's the best placement for it. And then trying to determine if it should be in the shallow end, in the deep end, in between, etc. Insights and experiences appreciated.
    13K Galon, saltwater pool, DE filter, IG-Vinyl, Northwind pump

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    Mod Squad jblizzle's Avatar
    Join Date
    May 2010
    Tucson, AZ

    Re: LED Light Placement in a 20 x 40 rectangular ool

    Might be best in the middle of the long end. Here is my thinking ...

    The color LEDs are not nearly as bright as white LEDs. The more Red the color, the shorter the distance the light will actually travel in the water.

    If you put it in the deep end on the short side, the light has to travel up to 41 feet to reach the furthest point. It does not have to spread as much so may have more even coverage. (Don't expect the Red to reach more than about half the length)

    Putting it on the long side makes the furthest point from the light 28 feet away. Down side is I am not sure how well the corners on the side with the light will be lit as the light will not reach 180 degrees.

    Perhaps others will offer their ideas.
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    Join Date
    May 2011
    Orange County, CA

    Re: LED Light Placement in a 20 x 40 rectangular ool

    If you are deciding where to put it at this point, I'd strongly suggest installing a second light niche and LED light. These can typically be synchronized by power toggling, and as mentioned, a single light will probably not provide as much light as you will want. We have two IntelliBrites, on in the pool and one in the attached spa. The spa gets very bright, but red hued colors are much weaker in the pool, especially in the shallow end (the light niche is in the deep end). LED lights are expensive, but given the option before all the hardscape is in, etc, now would really be the best time. If you go with two, I would put one about a 1/3rd or 1/4th from each end and this should give reasonably even coverage throughout the pool.
    38K in ground pool with attached spa. Current equipment: Easytouch 8 (521150) with IC-60 SWCG with web control by Autelis, 1x Pentair IntelliFlo 011018 pump (for filter), 1x Pentair 2HP WhisperFlo pump (for waterfall), 2X Pentair IntelliBrite 5G 12V lights, Pentair MiniMax400 NG Heater, Pentair SMBW2060 DE filter. Zodiac Barracuda MX8 cleaner on dedicated cleaner line. Lighting/home automation controlled by Insteon/ISY-99i.

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