bk406 said:Your description of the light has a me a little confused. Also, i cant tell from your post's but is this a concrete pool or fiberglass? The niche that your light fits into is usually a wet niche. In other words, there is supposed to be water in there. I'm not sure of the gasket you mention. Usually, the gasket on a light keeps water out of the fixture itself. A bad gasket will only let water into the light housing, but wouldnt cause a leak. The main cause of a leak around a light is either
1) a cracked housing allowing water to leak out that way, or
2) a cracked conduit that goes out the back of the housing. The conduit leads to a deck box that connects to the main line back to the power source. If the conduit is cracked, water will leak out the back of the light niche.
Thanks, bk. I just learned something. Now I know what that electrical junction/breaker box in back of the pool wall is for!! Which, will be helpful for changing out the light, of course. Now, it is a marcited pool, no fiberglass. I had my doubts when my friend said the leak was surely caused by the light "gasket". Now, it is evident based on your description, that can not cause a MAJOR leak. But then why did the water level keep going down, about say, 1/2" a day (if I remember) without the pump on? I could check the conduit, I guess. I may have to dig 3' for it. Also, this percieved cause of a leak doesnt explain why the leak was intensified while the pool pump ran, right?
I think I may be chasing a ghost with the light. (no All Saints Day/post Halloween pun) At this point, its all up in the air. Anything is possible, I guess.....