I have been reading into the Zapper Forum and looking into zappers. And am a little confused. First of all I have talked to a few people about this and they think it's a joke. They don't take me serious. I'm sure many of you have had a simular experince. Beyond that hows does the sceintific commuity feel about this? What kinda of proof is there that it kills parasites and other stuff? Is zapping all I have to do? Or should I also use another product with it? Do I need a zapper with differnt settings? Will a basic unit work O.K.?