Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 10 of 10

Thread: Water in pool light junction box??

  1. Back To Top    #1

    Join Date
    Mar 2014
    Location
    Albq. NM, United States
    Posts
    38

    Water in pool light junction box??

    We are having a new pool put in with a raised spa. It is almost complete but a few details need to be finished up including getting the lights (Intellibrite color) going. I notice that there is water dripping (a rather constant and rapid drip) out of the light wire junction box. First I would like to know if this is a safety hazard and secondly if it's common. I did do some reading on it and gather that I likely have a wet niche light housings and suspect that it is ok for water to get into the conduit but am not positive. It sounds like the J-box needs to be mounted at least 8" above the water line. Ours is about 10" above the pool water line but that puts it about 10" below the spa water line. I am guessing that water is going from the spa light niche through the conduit and that the J-box should be 8" above the spa water level. Is this correct or am I off base? Is there something that should stop the water from getting into the conduit? Obviously I don't want water running out of the j-box constantly is moving it up the correct fix. Thanks!

  2. Back To Top    #2
    Mod Squad JohnT's Avatar
    Join Date
    Apr 2007
    Location
    SW Indiana
    Posts
    9,085

    Re: Water in pool light junction box??

    Sounds like you are right to me. The box needs to be above the spa water line or the conduit acts as a drain for the spa.
    TFP Moderator
    20K Gallon 20X36 Vinyl Inground
    Hayward S244T Sand Filter with 1HP Whisperflo Pump. Liquidator C-201 and Solar Heat

  3. Back To Top    #3

    Join Date
    Mar 2014
    Location
    Albq. NM, United States
    Posts
    38

    Re: Water in pool light junction box??

    So water getting into the the conduit is fine/normal and no need to worry about that? Having this pool built has been a nightmare and I have little confidence in the builder.

  4. Back To Top    #4

    Join Date
    Mar 2014
    Location
    Albq. NM, United States
    Posts
    38

    Re: Water in pool light junction box??

    Also, while on the subject, the builder put this J-box in a spot that is in the way and unsightly (I actually had him move it next to a stone wall but it's sill unsightly). He told me that it had to be within 20 feet of the pool and therefore could not be at the equipment pad, which is about 60' from the spa light. My guess is that the distance from the pool is not a factor (other than too close) and the limitation is on the length of wire on the light that was ordered. Is this correct or is there some code that says the j-box has to be within 20 feet of the pool? Also, what is the closest to the edge of the pool is can be? This one is at 3'. Thanks.

  5. Back To Top    #5

    Join Date
    Apr 2013
    Location
    Sacramento, CA
    Posts
    2,769

    Re: Water in pool light junction box??

    Assuming we are not talking about low voltage lights, then the junction box must be 4 inches above the pool structure and 8 inches above the maximum water level. There is no restriction as to distance from the pool. Mine is more than 40 feet away. As you noted the limiting factor is how long a cord is attached to your light.

    The code contemplates that the conduit from the light niche to the junction box will have water in it but that the water will never rise to within 8 inches of the box.

    Your PB may be confusing the distance requirement for the "6-20" outlet. The code requires that a pool located at a dwelling unit have a 15 or 20 amp convenience receptacle between 6 and 20 feet from the edge of the pool.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

  6. Back To Top    #6

    In the Industry
    LeimLife's Avatar
    Join Date
    Jul 2014
    Location
    Cleveland, OH
    Posts
    25

    Re: Water in pool light junction box??

    I've seen electricians that didn't glue the conduit joints or the conduit got broken during backfill. There is a seal that goes around the light cord and into the conduit opening inside the niche. You can use pool putty also. This usually stops the leak pretty good.

    pool- adj. A hole of any variois size that you throw stacks of 20.00 bills into

  7. Back To Top    #7

    Join Date
    Apr 2013
    Location
    Sacramento, CA
    Posts
    2,769

    Re: Water in pool light junction box??

    The NEC contemplates that the conduit from the light niche to the junction box will have water in it. It is usually a bad idea to block the conduit with putty or anything else because it makes running the wire from the pool to the junction box very difficult if you have to relamp.

    I've never heard of a seal for that conduit.
    22k gallon IG pebblefina, Jandy 1.5 HP VS, Jandy CV Cartridge filter, Fafco solar panels, Polaris 360 supply side cleaner, waterfall

  8. Back To Top    #8

    Join Date
    Mar 2014
    Location
    Albq. NM, United States
    Posts
    38

    Re: Water in pool light junction box??

    Thanks to all for the input, very helpful as usual!

  9. Back To Top    #9

    TFP Guide

    Kiss4aFrog's Avatar
    Join Date
    May 2013
    Location
    Hudson, WI
    Posts
    2,602

    Re: Water in pool light junction box??

    Tfastle, depending on the question it's usually helpful if you have your location and pool information added as outlined here - > http://www.troublefreepool.com/conte...etting-started
    '70s IG Vinyl 32K gal, Lazy L, Hayward SuperPump 1.5hp 120V, S240 Sand Filter W/DE
    Solar Blanket, Well Water, Borax Added, TF-100 tester. ? too cold
    1979, 275gal Conway Emerald Spa P-100-2, ES-2 Spa Pack, bromine floater, indoor
    TF-100, Best test kit - TFTestkits.net
    Please help keep the lights on, become a TFP Supporter!

  10. Back To Top    #10

    Join Date
    Mar 2014
    Location
    Albq. NM, United States
    Posts
    38

    Re: Water in pool light junction box??

    Thanks Kiss4, I should have been aware of that. I just updated profile and sig.
    21,000 gal, in ground gunite/plaster, sand filter, rectangular pool with automatic cover, raised 8' round spa, 2' wall opposite spa with 2 sheer decent falls, 8 deck jets, 2 Pentair VS speed pumps (1 for pool/spa, 1 for falls and deck jets), one 2 hp for 6 spa jets, almost completed (been 3 months, was supposed to be 5 weeks).

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •