to hear others in an effort to understand, not just to reply. this guide will show you how to remove the back cover. that was one of my biggest issues. that they stand (well, swim, really) prepared to defend an attack on your water supply?! or maybe because you acted quick,as i did,so i will hope and see what happens. watch day tell his incredible story in the clip from "fox and friends weekend" above. all head and very little heart. i just know by now that it kills bacteria in the toilet. welcome to the wood, fire and smoke show!!! 