I've been maintaining my girlfriend's pool and have changed the bulb/gasket on one of her pool lights multiple times. Each time, the end result was the same - water eventually leaked into the housing and GFI did it's job. I have always assumed it was my inability to get a good seal between the lens and the housing.
This evening, when I pulled the housing out of the niche and onto the deck, I saw "gurgles" (not real sure how to describe it) from the power cord near where it enters the housing (the gurgles were from where there are obvious joints, as opposed to a place in the power cord itself). The housing was out of the water when I noticed "gurgles". From that, I think my issues have not (necessarily!) been the lens/housing seal (note 1), but the leak is from where the power cord enters the housing.
Pulling the light fixture out and replacing isn't an option at this time (long story!).
I am heavily leaning towards *liberally* applying a "sealant" (use a very liberal definition of that word!) to the area where the power cord enters the housing.
Any suggestions as to which sealant to use and/or suggestions on application? I've read in other threads "AB Epoxy" - but that was for sealing the niche/power cord interface and not the housing/niche interface. Preferably, I need something that cures in 80-95 degree weather or underwater AND cures preferably in hours and not multiple days (the light fixture needs to be re-installed and ready for a "sweet 16" party in a few days).
Note 1: when I first pulled this thing out, the gasket was installed such that it went around the lens AND housing as opposed to around the lens and then the combined lens/gasket was mated to the housing. I've since seen videos where the gasket is applied to the lens, and then mated to the housing. Comments on which is correct? (this is a good representation of the gasket: http://www.inyopools.com/Products/07...KxURoCqXnw_wcB
Note 2: When the housing was on the deck, I had to "tug" a little to get more cord out. When I did that, an air bubble came out of the niche. That perplexed me! Any thoughts on that?
Note 3: This evening, when the housing was installed (i.e. before I removed it!), I noticed semi-periodic "bubbles" coming from the niche. I assumed it was from air escaping the housing - but given note 2 - any thoughts? (I've always assumed the place where the power cord enters the niche was "free" and not intended to be air tight - so am unsure where air can be coming from).