I had an issue where my breaker would trip whenever I turned on the LED pool/spa light. I drained the spa and took the light apart. Sure enough there was light moisture inside the light. There is a gasket that protects the actual light but should there also be one that sits up against the pool wall to make a deal with the light housing and the wall. As you can see from my photos. The top of the light sits pretty flush with the wall but the bottom does not sit flush against the wall. What can I do to to get a tighter seal with the wall or is it not really necessary?