If you have an air compressor, you can use an air grinder to grind the head
off the screw. Once the bezel is removed, you can grab onto the remaining
shaft with vice grips to remove it the rest of the way. Visibility may be
poor using an air tool underwater but there should be no safety issue as
with electric power tools.



wrote in message
ups.com...
The entire socket assembly is on a long cord that allows you to life it
above the water surface, open it, and replace the bulb. I just can't
figure out how to remove the fixture without draining the water because
of the bad screw head.