I "inherited" my pool in the summer of last year and marveled this winter that the pool didn't overflow with all of the rain we had. I figured it must have had an overflow drain somewhere, but was never able to determine where.
I was just curious enough to do a bit of detective work and found that there's actually a gap between the pool coping / cement and the skimmer (see picture) that I'm assuming the water drains into when it gets high enough. I definitely don't have a leak as the water level only drains down to approximately where the pool waterline should be and then stops, so it doesn't impact normal day to day use of the pool.
Is this something I should leave alone or should fix? If fix, would something like silicon caulk be the best way?