Become a TFP Supporter Pool Math Forum Rules Pool School
Results 1 to 2 of 2

Thread: Sealing light casing hole?

  1. Back To Top    #1
    Shpigford's Avatar
    Join Date
    Apr 2011
    Birmingham, AL

    Sealing light casing hole?

    So I've had pretty major water loss (1-2" per day) since we got our pool up and running this year (bought the house, had to replace the liner) and after doing a bit of investigating, I found that the hole in the back of our underwater light casings (we have two lights) where the cord for the light goes out of the casing, is just wide open. Nothing sealing them at all.

    Am I correct in assuming that's probably a major cause (if not the cause) of our water loss?

    And if so, what do I seal the whole at the back of the casing with?
    22,000 gallon vinyl in ground with Hayward S244T sand filter and Hayward 3/4 hp Super Pump.

  2. Back To Top    #2

    Join Date
    May 2007
    South Central NJ

    Re: Sealing light casing hole?

    The hole, on the back of niche has a conduit leading to the deck box. It should be water tight already. While it will fill with water, it shouldn't leak. A squirt from a dye pen will tell you if the conduit has been compromised. If it has, a couple wraps of butyl tape around the light cord will seal it and still be removable, should the fixture ever need to be removed.

    A professional diver can inspect the pool if a pressure test hasn't revealed anything.

    Owner of - PoolGuyNJ LLC
    Expert Pool and Spa Repairs, Renovations, and Augmentation. Helping people decide what is the right gear for meeting their needs. Expectations Set, Expectations Met, No Surprises.

Posting Permissions

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