i've set it up according to instructions, i set the water level 5 inches from the bottom of my sump, and the saftey alarm an additonal 4 inches on top of that, well, the optical sensor didnt quite work as i thaugth it would, its now about 4 inches under the waterlevel, with the green water ligth lighting "hey im good dude" and the water level bopping a half inch under the alarm, if the power goes out my basement floods (again, which is no real big deal) but, i guess the question is, hey what do i do?