We had this problem last summer and already, I have noticed again this spring that when the underwater pool light is on bats seem to be attracted to the pool. I know that they are probably just feeding on mosquitos and maybe they see them above the pool with the light on. I am not personally scared of the bats but my girlfriend and others are spooked as the bats fly real low, sometimes within inches of your head. Does anybody else have this problem with night swimming, and is there anything that you can do to scare the bats off, other that turning the light out?