The gasket around the light niche is falling apart so I'd like to replace it before it becomes an issue. I drained water from my in-ground spa down below the light and removed the light from the niche and removed all of the screws for the niche. But the niche won't budge. The light wire feeds to the back of the niche and goes into a transition 'hole' (not sure what to call this) and probably on to the conduit. This 'hole' had small screw which I removed but the niche still won't budge. Any ideas? A photo is attached below.