Just moved to a new house with a pool in november. The pool hasnt been opened for two years so I thought I would get a head start before it started getting warm enough for the algea to start blowing up. The water was dark green when I started but now thanks to this site I have the water almost clear. What I have come to find (since I can now see deeper than 6 inches) is I have three pool lights that dont work and need to change out bulbs. I have taken the screws out and popped off the retainer ring but cant seem to get the lights to come out of the walls. Is anyone familiar with these types of lights and what it takes to change them.