"Pop" wrote in message

Umm, no, they do NOT do that "sometimes" if everything is installed
correctly. Sorry, don't mean to sound confrontational, but a GFCI
tripping is an indication that something went wrong whether it was water
or whatever that caused it to trip. They don't "just do that" for no
reason. They would be useless in such a case.

As I pointed out. Sure, there was a reason, but the conditions may have
changed ten minutes later and the real cause is never found. Excessive
moisture across a plug can do it. That means it is working as it should.