Has anybody used this product before: Geothermal Green Clean After about 2 weeks of trying to get a hold of this guy to get some information, I was finally able to talk to him. He didn't tell me much other than how great it is and everybody to isn't using it, is doing it wrong. I have used the ice machine cleaner for years with a couple other chemicals as well. It's hard to beat the small chemical pump and the ice machine cleaner. I have a customer, (whom I am still working on them letting me convert them to closed loop,) who would like to use something more environmentally friendly. Any thoughts? Thanks!